Common use of Representations, Warranties and Covenants of the Investor Clause in Contracts

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares common units presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Units in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Units or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement.

Representations, Warranties and Covenants of the Investor. 4.1 The Investor acknowledges, represents and warrants that it has received the Registration Statement and the Prospectus. 4.2 The Investor further represents and warrants to, and agrees covenants with, the Company that (i) the Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the Placement Agents that:transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (ii) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4.1 4.3 The Investor represents and warrants to, and covenants with, the Company that: (ai) the Investor is knowledgeable, sophisticated and experienced in making, and is qualified to make make, decisions with respect to, to investments in shares presenting representing an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company ; and investments in comparable companies, (bii) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) has, in connection with its decision to purchase the number of Shares set forth on Schedule I to the Signature PageAgreement, has received and is relying relied solely upon (i) the Disclosure Package Registration Statement, the Prospectus, and the documents incorporated any amendments or supplements thereto and has not relied upon any information provided by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents in their capacity as Placement Agents for the Company. 4.4 The Investor understands that would permit an offering of nothing in the SharesProspectus and any supplement thereto, this Agreement or possession or distribution of offering any other materials presented to the Investor in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 From and after obtaining knowledge of the sale of the Shares contemplated hereby, except the Investor has not taken, and prior to the public announcement of the transaction the Investor shall not take, any action that has caused or will cause the Investor to have, directly or indirectly, sold or agreed to sell any Common Stock, effected any short sale, whether or not against the box, established any “put equivalent position” (as set forth defined in Rule 16a-1(h) under the Securities Exchange Act of 1934, as amended) with respect to the Common Stock, granted any other right (including, without limitation, any put or incorporated by reference call option) with respect to the Common Stock or with respect to any security that includes, relates to or derives any significant part of its value from the Common Stock, whether or not, directly or indirectly, in order to hedge its position in the Base Prospectus or the Prospectus SupplementShares.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire for use in preparation of the Prospectus Supplement and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor acknowledges that (a) the Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, it has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a4.2(a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the Final Prospectus and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares the Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementFinal Prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation).

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales involving the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities) and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire for use in preparation of the Prospectus Supplement and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor acknowledges that (a) the Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and Page, the Investor Questionnaire and, if applicable, the Risk Acknowledgement Form and has completed the Accredited Investor Certificate and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Securities set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering InformationPackage. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States and Canada by the Company or the Placement Agents that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States and Canada where action for that purpose is required, (b) if the Investor is outside the United StatesStates or Canada, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus Prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the Prospectus Supplementenforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package or any other materials presented to the Investor in connection with the purchase and sale of the Securities constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Securities. 4.5 The Investor acknowledges that this Agreement requires the Investor to provide certain personal information to the Company. Such information is being collected by the Company for the purposes of completing the Offering, which includes, without limitation, determining the eligibility of the Investor to purchase the Securities under applicable securities laws and completing filings required by any securities regulatory authority. Personal information regarding the Investor may be disclosed by the Company to: (a) securities regulatory authorities; (b) the Company’s Transfer Agent; (c) any government agency, board or other entity; and (d) any of the other parties involved in the Offering, including the Company and its legal counsel, and may be included in record books in connection with the Offering. By executing this Agreement, the Investor is deemed to be consenting to the foregoing collection, use and disclosure of such personal information. 4.6 The Investor acknowledges that it has been notified by the Company: (a) of the requirement to deliver to the British Columbia Securities Commission (the “BCSC”) the full name, residential address and telephone number of the Investor, the number and type of Securities purchased, the Aggregate Purchase Price, the exemption relied upon and the date of distribution of the Securities; (b) that such information is being collected indirectly by the BCSC under the authority granted to it under applicable Canadian securities laws; (c) that such information is being collected for the purposes of the administration and enforcement of the securities legislation of the Province of British Columbia; and (d) that the BCSC can be contacted at British Columbia Securities Commission, P.O. Box 10142, Pacific Centre, 000 Xxxx Xxxxxxx Xxxxxx, Xxxxxxxxx, Xxxxxxx Xxxxxxxx, X0X 0X0, Telephone: (000) 000-0000, Toll free across Canada: 1-800-373-6393, Facsimile: (604) 899-658, and can answer any questions about the BCSC’s indirect collection of such information. By executing this Agreement, the Investor hereby authorizes the indirect collection of such information by the BCSC.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that: (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which any Placement Agent first contacted such Investor about the Offering, it has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities) and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to advisors that are under a legal obligation of confidentiality) prior to the later of (a) the time that the transactions contemplated by this Agreement are publicly disclosed and (b) the open of regular trading on the Nasdaq Global Market on December 13, 2006. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent (as to itself), that: 4.1 4.1. The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting equity securities requiring an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and and/or investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares Shares, in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any Issuer Free Writing Prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4. The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted its own legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5. Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a−1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agents first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities) and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and Page, the Investor Questionnaire and, if applicable, the Risk Acknowledgement Form and has completed the Accredited Investor Certificate and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Securities set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering InformationPackage. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States and Canada by the Company or the Placement Agents that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States and Canada where action for that purpose is required, (b) if the Investor is outside the United StatesStates or Canada, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus Prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the Prospectus Supplementenforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package or any other materials presented to the Investor in connection with the purchase and sale of the Securities constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Securities. 4.5 The Investor acknowledges that this Agreement requires the Investor to provide certain personal information to the Company. Such information is being collected by the Company for the purposes of completing the Offering, which includes, without limitation, determining the eligibility of the Investor to purchase the Securities under applicable securities laws and completing filings required by any securities regulatory authority. Personal information regarding the Investor may be disclosed by the Company to: (a) securities regulatory authorities; (b) the Company’s Transfer Agent; (c) any government agency, board or other entity; and (d) any of the other parties involved in the Offering, including the Company and its legal counsel, and may be included in record books in connection with the Offering. By executing this Agreement, the Investor is deemed to be consenting to the foregoing collection, use and disclosure of such personal information. 4.6 The Investor acknowledges that it has been notified by the Company: (a) of the requirement to deliver to the British Columbia Securities Commission (the “BCSC”) the full name, residential address and telephone number of the Investor, the number and type of Securities purchased, the Aggregate Purchase Price, the exemption relied upon and the date of distribution of the Securities; (b) that such information is being collected indirectly by the BCSC under the authority granted to it under applicable Canadian securities laws; (c) that such information is being collected for the purposes of the administration and enforcement of the securities legislation of the Province of British Columbia; and (d) that the BCSC can be contacted at British Columbia Securities Commission, P.O. Box 10142, Pacific Centre, 000 Xxxx Xxxxxxx Xxxxxx, Xxxxxxxxx, Xxxxxxx Xxxxxxxx, X0X 0X0, Telephone: (000) 000-0000, Toll free across Canada: 1-800-373-6393, Facsimile: (604) 899-658, and can answer any questions about the BCSC’s indirect collection of such information. By executing this Agreement, the Investor hereby authorizes the indirect collection of such information by the BCSC.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants (as of the date hereof) to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) none of the Placement Agents are not is authorized to make and or has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus, any Issuer Free Writing Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the first date on which a Placement Agent contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will (i) maintain the confidentiality of all information acquired as a result of the transactions contemplated herein and (ii) not engage in any purchases or sales of the securities of the Company (including Short Sales), in each case prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales involving the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers. 4.6 The Investor understands that there is significant uncertainty whether or not Amgen Inc. (“Amgen”) will acquire an exclusive worldwide (excluding Japan) license to develop and commercialize CK-1827452 pursuant to the rights granted it under that certain Collaboration and Option Agreement between the Company and Amgen dated December 29, 2006, as amended from time to time by the parties.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information... 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the General disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, it has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 5.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting securities representing an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received (or had full access to) and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering InformationInformation and the representations and warranties set forth herein. 4.2 5.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, and (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense expense. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (cb) the Placement Agents are not authorized to make this Agreement constitutes a valid and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale binding obligation of the SharesInvestor enforceable against the Investor in accordance with its terms, except as set forth enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or incorporated by reference similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the Base Prospectus enforceability of any rights to indemnification or contribution that may be violative of the Prospectus Supplementpublic policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation).

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, with the Company and the Placement Agents Agent (as to itself), that: 4.1 4.1. The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesCommon Stock, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares shares of Common Stock set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesCommon Stock, or possession or distribution of offering materials in connection with the issue of the Shares shares of Common Stock in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares shares of Common Stock or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesCommon Stock, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. 4.3. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4. The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Common Stock constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Common Stock. 4.5. Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the shares of Common Stock acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a−1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and (including the documents incorporated by reference therein and (ii) the Offering Informationtherein). 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth in the Issuer Free Writing Prospectus or as set forth in or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agents first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to its advisors that are under a legal obligation of confidentiality prior to the time that the transactions contemplated by this Agreement are publicly disclosed pursuant to the Form 8-K Filing. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeableknowledgble, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Initial Closing Date and the Second Closing Date, as applicable, (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information, and not any other preliminary or final prospectus pursuant to the Registration Statement and (d) the Investor it is responsible for conducting its own due diligence investigation with respect to the Company and this Offering, it is purchasing shares in this Offering based on the results of its own due diligence investigation of the Company, it has negotiated this Offering directly with the Company and the decision to invest in this Offering will involve a significant degree of risk, including a risk of total loss of such investment. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, required and (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplementexpense.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and Package, the documents incorporated by reference therein and (ii) the Offering Informationrepresentations and warranties contained in this Agreement and the Placement Agent Agreement. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares and Warrants set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Units, in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Units or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation) and (c) the execution and delivery of this Agreement and the consummation of the transactions contemplated hereby do not conflict with or result in a breach of (i) the Investor’s certificate of incorporation or by-laws (or other similar governing documents) or (ii) any agreement or any law or regulation to which the Investor is a party or by which any of its property or assets is bound. 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agents first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and each Additional Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received (or had full access to) and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation).

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire for use in preparation of the Prospectus Supplement and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Disclosure Package, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, it has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of any of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. 4.5 Since the time at which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities), and has not violated its obligations of confidentiality. The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the General disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which a Placement Agent first contacted the Investor about the Offering, it has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received (or had full access to) and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company. 4.6 Since the date on which the Placement Agent first contacted the Investor about the Offering, it has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent (as to itself), that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 The Investor acknowledges that (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers (but shall not be deemed to include the location and/or reservation of borrowable shares of Common Stock).

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Issuer Free Writing Prospectus (if any), the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors that are subject to a legal obligation of confidentiality) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to its legal, accounting and other advisors that are subject to a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions and provided all requested information on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares and the Warrants set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue issuance of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issueissuance, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor is either an individual or an entity duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization and has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). The Investor’s execution, delivery and performance of this Agreement and the consummation by it of the transactions contemplated hereby do not and will not (i) conflict with or violate any provision of the Investor’s certificate or articles of incorporation, bylaws or other organizational or charter documents, or (ii) conflict with or result in a violation of any law, rule, regulation, order, judgment, injunction, decree or other restriction of any court or governmental authority to which the Investor is subject (including federal and state securities laws and regulations), or by which any property or asset of the Investor is bound or affected. 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares and the Warrants constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares and Warrants. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing of the Warrants on any securities exchange or other market or quotation system. The Investor understands that without an active market, the liquidity of the Warrants will be limited. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which the Placement Agent first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Shares if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions and provided all requested information on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares and the Warrants set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor is either an individual or an entity duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization and has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). The Investor’s execution, delivery and performance of this Agreement and the consummation by it of the transactions contemplated hereby do not and will not (i) conflict with or violate any provision of the Investor’s certificate or articles of incorporation, bylaws or other organizational or charter documents, or (ii) conflict with or result in a violation of any law, rule, regulation, order, judgment, injunction, decree or other restriction of any court or governmental authority to which the Investor is subject (including federal and state securities laws and regulations), or by which any property or asset of the Investor is bound or affected.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the General Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor acknowledges that (a) the Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. 4.5 Since the earlier to occur of (i) the date on which the Placement Agent first contacted such Investor about the Offering and (ii) the date that is the tenth (10th) trading day prior to the date of this Agreement, it has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Shares if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker-dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the any Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth in the Company’s public filings (which are available via XXXXX) or incorporated by reference in the Base Prospectus or the Prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Disclosure Package, the Prospectus Supplementor any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. In connection with its purchase of Shares, the Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate and is not relying upon any advice or representations of the Placement Agents. The decision of the Investor to purchase the Shares has been made by the Investor independently of the Placement Agents and any other Investor. 4.5 Since the date on which the Company or the Placement Agents first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the class A common shares if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers. The Investor understands this it is solely responsible for its compliance with applicable securities and other laws with respect to its investment in the Shares.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and (including the documents incorporated by reference therein and (ii) the Offering Informationtherein). 4.2 (a4.2(a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth in the Issuer Free Writing Prospectus or as set forth in or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agents first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities), and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to its advisors that are under a legal obligation of confidentiality prior to the later of (a) the time that the transactions contemplated by this Agreement are publicly disclosed and (b) the open of regular trading on The NASDAQ Global Market on July 16, 2008. Each Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents (each, as to itself), that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any Issuer Free Writing Prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agents first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities), and has not violated its obligations of confidentiality. The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Securities set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the Final Prospectus and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Investor that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares the Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Investor understands that the Placement Agents are have not been authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus or the Final Prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may violate the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Registration Statement, the Final Prospectus Supplementor any other materials presented to the Investor in connection with the purchase and sale of the Securities constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Securities. 4.5 Since the time on which the Placement Agents first contacted such Investor about the Offering, such Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Company’s common stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents as at the date hereof and at the Closing Date, that: 4.1 The Investor Investor: (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 (a) No The Investor understands that no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Disclosure Package, the Prospectus, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Company or the Placement Agents first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which the Placement Agent first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package Offering Information and the documents incorporated by reference therein and (ii) the Offering InformationDisclosure Package. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which the Placement Agent first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and Date, (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information, and not any other preliminary or final prospectus pursuant to the Registration Statement and (d) the Investor it is responsible for conducting its own due diligence investigation with respect to the Company and the Offering, it is purchasing shares in the Offering based on the results of its own due diligence investigation of the Company, it has negotiated the Offering directly with the Company and the decision to invest in the Offering will involve a significant degree of risk, including a risk of total loss of such investment. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, required and (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplementexpense.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent, that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any Issuer Free Writing Prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Units. 4.5 Since the date on which any Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received (or had full access to) and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing of the Warrants on any securities exchange. The Investor understands that without an active market, the liquidity of the Warrants will be limited. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which any Placement Agent first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No The Investor understands and acknowledges that no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementSupplement or any Issuer Free Writing Prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors that are subject to an obligation of confidentiality) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any transactions involving the securities of the Company (including Short Sales) or disclose any information about the Offering (other than to its legal, accounting and other advisors that are subject to an obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, (but shall not be deemed to include the location and/or reservation borrowable shares of Common Stock). 4.6 The Investor is acquiring the Securities for its own account, not as a nominee or agent; provided, however, that by making the representations herein, the Investor does not agree to hold any of the Securities for any minimum or other specific term and reserves the right to resell or otherwise dispose of the Securities at any time, subject to compliance with applicable federal or state securities laws, rules or regulations. The Investor is acquiring the Securities hereunder in the ordinary course of its business and does not presently have any agreement or understanding, directly or indirectly, with any third party to acquire, sell, transfer, or distribute any of the Securities.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, it has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a4.2(a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the time of which the Placement Agent first contacted such Investor about the Offering, Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales involving the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire for use in preparation of the Prospectus Supplement and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor acknowledges that (a) the Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the earlier to occur of (i) the date on which the Placement Agents first contacted such Investor about the Offering and (ii) the date that is the tenth (10th) trading day prior to the date of this Agreement, it has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire for use in preparation of the Prospectus Supplement and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor acknowledges that (a) the Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agents first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Securities set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the Final Prospectus and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares the Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are have not been authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus or the Final Prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the General Disclosure Package, the Final Prospectus Supplementor any other materials presented to the Investor in connection with the purchase and sale of the Securities constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Securities. 4.5 Since the time on which the Placement Agents first contacted such Investor about the Offering, such Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Company’s common stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information, and not any other preliminary or final prospectus pursuant to the Registration Statement and (d), the Investor it is responsible for conducting its own due diligence investigation with respect to the Company and the Offering, it is purchasing shares in the Offering based on the results of its own due diligence investigation of the Company, it has negotiated the Offering directly with the Company and the decision to invest in the Offering will involve a significant degree of risk, including a risk of total loss of such investment. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, required and (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplementexpense.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent (as to itself), that: 4.1 4.1. The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the Prospectus Supplementtransactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4. The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5. Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a−1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Company, that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) is an “accredited investor,” as such term is defined in Rule 501 of the Securities Act of 1933, as amended, (c) has answered all questions on the Signature Page signature page hereto, Exhibit A attached hereto, and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (cd) in connection with its decision to purchase the number of Shares set forth on the Signature PageExhibit A attached hereto, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 The Investor acknowledges that this Agreement is made with such Investor in reliance upon such Investor’s representation to the Company that the Securities will be acquired for investment for such Investor’s own account, not as a nominee or agent, and not with a view to the resale or distribution of any part thereof, and that such Investor has no present intention of selling, granting any participation in, or otherwise distributing the same. By executing this Agreement, such Investor further represents that such Investor does not have any contract, undertaking, agreement or arrangement with any person to sell, transfer or grant participation to such person or to any third person, with respect to the Securities. 4.3 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, and (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense expense. 4.4 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (cb) this Agreement constitutes a valid and binding obligation of the Placement Agents are not authorized Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to make general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and has not made any representation, disclosure or use except as to the enforceability of any information rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.5 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the issue, placement, purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Shares. 4.6 Since the date on which the Company first contacted the Investor about the Offering, except as set forth the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or incorporated by reference sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the Base Prospectus securities of the Company (including Short Sales) or disclose any information about the Prospectus SupplementOffering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company as at the date hereof and at the Placement Agents Closing Date, that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire for use in preparation of the Prospectus Supplement and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, required and (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense expense. 4.3 The Investor (a) is not a resident of or otherwise governed by the laws of Canada or any province or territory thereof; (b) was not offered the Shares in Canada; (d) did not execute or deliver this Agreement in Canada; (e) is purchasing the Shares as principal for its own account and not for the benefit of any other person; and (cf) is either: (i) acquiring Shares with an aggregate purchase price in excess of Canadian $150,000 and was not created or used solely to purchase or hold securities pursuant to an exemption from the Placement Agents are not authorized registration requirements of applicable Canadian securities laws; or (ii) is an ‘accredited investor’ within the meaning of applicable Canadian securities laws and the Investor has duly executed and delivered to make the Company the Certificate of Accredited Investor attached hereto as Exhibit B indicating the means by which the Investor is an accredited investor and the content therein is, and will on the Closing Date be, true and accurate. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has not made any representationtaken all necessary action to authorize the execution, disclosure delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or use similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any information rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.5 The Investor understands that nothing in this Agreement, the Disclosure Package, the Prospectus or any other materials presented to the Investor in connection with the issue, placement, purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.6 Since the date on which the Company first contacted such Investor about the Offering, except as set forth or incorporated by reference the Investor has not engaged in any transactions in the Base Prospectus securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), whether or not against the Prospectus Supplementbox, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementSupplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In 3 4.5 Since the date on which any Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales involving the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesSecurities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares and the Warrants set forth on the Signature Page, has received (or had full access to) and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesSecurities, except as set forth or incorporated by reference in the Base Prospectus, the Prospectus Supplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares and the Warrants constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares and Warrants. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing of the Warrants on any securities exchange or other trading market. The Investor understands that without an active market, the liquidity of the Warrants will be limited. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which the Placement Agent first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering or the Prospectus Supplementother confidential information relating to the Company’s plan to pursue strategic alternatives provided to the Investor to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement and the other confidential information relating to the Company’s plan to pursue strategic alternatives are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received (or had full access to) and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchase or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement with respect to the sale of the Units are publicly disclosed. The Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers. 4.6 During the period beginning on the Additional Purchase Right Cancellation Deadline and ending on the Additional Purchase Right Expiration Date, the Investor may not sell (long or short) on any Trading Day during such period a number of shares of Common Stock that is in excess of 7.5% of the aggregate dollar trading volume (as reported on Bloomberg) of the Common Stock on the NASDAQ Global Market or such other Eligible Market on such Trading Day; provided that the restriction set forth in this Section 4.6 shall not apply from and after the date of the Additional Shares Exercise Notice. During the sixty (60) day period ending on the date of the Additional Shares Exercise Notice, the Company and each of the Company’s officers and directors shall not directly or indirectly engage in any purchases of Common Stock or securities convertible into or exchangeable or exercisable for Common Stock.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company Trust and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company Trust and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information.; 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company Trust or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement; 4.3 The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation); 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares; and 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Trust (including, without limitation, any Short Sales (as defined below) involving the Company’s securities) and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Trust (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Shares if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers. 4.6 The Investor satisfies the suitability requirements as set forth in the Registration Statement, the Disclosure Package and the Prospectus under “Suitability Standards” and pursuant to the requirements under FINRA Rule 2310(b)(2). 4.7 The Investor has received all pertinent facts with regard to the liquidity and marketability of the Shares.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent (as to itself), that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares securities presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 The Investor acknowledges that (a) No no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus, the Prospectus Supplement or any free writing prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. The Investor understands that without active market, the liquidity of the Warrants will be limited. 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 4.6 Since the time at which the Placement Agent first provided the Investor final definitive pricing and allocations to the Investor of the Offering (the “Restriction Time”), the Investor has not disclosed any material pricing information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) from the Restriction Time until the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers. 4.7 The Investor has been afforded, (i) the opportunity to ask such questions as it has deemed necessary of, and to receive answers from, representatives of the Company concerning the terms and conditions of the Offering and the merits and risks of investing in the Securities; (ii) access to information about the Company and its financial condition, results of operations, business, properties, management and prospects sufficient to enable it to evaluate its investment; and (iii) the opportunity to obtain such additional information that the Company possesses or can acquire without unreasonable effort or expense that is necessary to make an informed investment decision with respect to the investment. The Investor acknowledges and agrees that neither Xxxx nor any affiliate of Xxxx has provided such Investor with any information or advice with respect to the Securities nor is such information or advice necessary or desired. Neither Xxxx nor any of its affiliates has made or makes any representation as to the Company or the Prospectus Supplementquality of the Securities and Xxxx and any of its affiliate may have acquired non-public information with respect to the Company which such Investor agrees need not be provided to it. In connection with the issuance of the Securities to such Investor, neither Xxxx nor any of its affiliates has acted as a financial advisor or fiduciary to such Investor.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities), and has not violated its obligations of confidentiality. The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Disclosure Package. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Prospectus SupplementInvestor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. 4.5 Since the date on which the Placement Agents first contacted such Investor about the Offering, the Investor has not engaged in any purchases or sales of the securities of the Company (including, without limitation, any Short Sales (as defined herein) involving the Company’s securities), and has not violated its obligations of confidentiality. The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Units acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the neither Placement Agents are not Agent is authorized to make and or has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the first date on which a Placement Agent contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company Trust and the Placement Agents Underwriters that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company Trust and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information.; 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company Trust or the Placement Agents Underwriters that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents Underwriters are not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement; 4.3 The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation); 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares; and 4.5 Since the date on which the Underwriters first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Trust (including, without limitation, any Short Sales (as defined below) involving the Company’s securities) and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Trust (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Shares if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, with the Company and the Placement Agents Agent (as to itself), that: 4.1 4.1. The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesCommon Stock, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares shares of Common Stock set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesCommon Stock, or possession or distribution of offering materials in connection with the issue of the Shares shares of Common Stock in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares shares of Common Stock or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has have not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesCommon Stock, except as set forth or incorporated by reference in the Base Prospectus or Prospectus, the Prospectus SupplementSupplement or any free writing prospectus. 4.3. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4. The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Common Stock constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Common Stock. 4.5. Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the shares of Common Stock acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus SupplementSupplement or any free writing prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants being offered in the Offering, and that the Company does not expect such a market to develop. In addition, the Company does not intend to apply for listing the Warrants on any securities exchange. Without an active market, the liquidity of the Warrants will be limited. 4.5 Since the date on which the Placement Agent first contacted the Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales involving the securities of the Company (including, without limitation, any Short Sales involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales involving the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Shares if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and each Additional Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information... 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesUnits, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Base Prospectus, the Preliminary Prospectus or Supplement, the Prospectus SupplementSupplement or any free writing prospectus. 4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation).

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent as at the date hereof and at the Closing Date, that: 4.1 The Investor Investor: (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Informationtherein. 4.2 (a) No The Investor understands that no action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares Shares, in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense expense, and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus Prospectus. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Disclosure Package, the Prospectus, the Offering Information or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Company or the Prospectus SupplementPlacement Agent first contacted such Investor about the Offering, the Investor has not disclosed any information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities). The Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-U.S. broker dealers or foreign regulated brokers.

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares Units presenting an investment decision like that involved in the purchase of the SharesUnits, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares Units set forth on the Signature Page, has received and is relying solely only upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the SharesSecurities, or possession or distribution of offering materials in connection with the issue of the Shares Securities in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the SharesUnits, except as set forth or incorporated by reference in the Issuer Free Writing Prospectus (if any), the Base Prospectus or the Prospectus Supplement. (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation).

Representations, Warranties and Covenants of the Investor. The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agents Agent that: 4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with respect to, investments in shares presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company and investments in comparable companies, (b) has answered all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase the number of Shares set forth on the Signature Page, has received and is relying solely upon (i) the Disclosure Package and the documents incorporated by reference therein and (ii) the Offering Information. 4.2 (a4.2(a) No action has been or will be taken in any jurisdiction outside the United States by the Company or the Placement Agents Agent that would permit an offering of the Shares, or possession or distribution of offering materials in connection with the issue of the Shares in any jurisdiction outside the United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or delivers Shares or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agents are Agent is not authorized to make and has not made any representation, disclosure or use of any information in connection with the issue, placement, purchase and sale of the Shares, except as set forth or incorporated by reference in the Base Prospectus or the Prospectus Supplement. 4.3 The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 4.4 The Investor understands that nothing in this Agreement, the Prospectus or any other materials presented to the Investor in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Shares. 4.5 Since the date on which the Placement Agent first contacted such Investor about the Offering, the Investor has not engaged in any transactions in the securities of the Company (including, without limitation, any Short Sales (as defined below) involving the Company’s securities) and has not violated its obligations of confidentiality. Each Investor covenants that it will not engage in any transactions in the securities of the Company (including Short Sales) or disclose any information about the contemplated offering (other than to its advisors that are under a legal obligation of confidentiality) prior to the time that the transactions contemplated by this Agreement are publicly disclosed. Each Investor agrees that it will not use any of the Shares acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.