Common use of Your Interest in the Registrable Securities Clause in Contracts

Your Interest in the Registrable Securities. (a) In the table below, state the type and amount of Registrable Securities beneficially owned by you. Type of Security Number of Shares Type of Ownership (direct, or indirect through trust, partnership, etc.) (b) Other than as set forth in your response to Item 3(a) above, do you beneficially own any other securities of the Company? Yes. No. (c) If your answer to Item 3(b) above is yes, state the type and the aggregate amount of such other securities of the Company beneficially owned by you. Type: Aggregate amount: (d) If your response to Item 1(d) is yes, did you acquire the securities listed in Item 3(a) above in the ordinary course of business? Yes. No. (e) If your response to Item 1(d) is yes, at the time of your acquisition of the securities listed in Item 3(a) above, did you have any agreements or understandings, direct or indirect, with any person to distribute the securities? Yes. No. (f) If your response to Item 3(e) above is yes, please describe such agreements or understandings: Note: If you are an affiliate of a broker-dealer and did not acquire your Registrable Securities in the ordinary course of business or at the time of acquisition had any agreements or understandings, direct or indirect, with any person to distribute the securities, the Company may be required to identify you as an underwriter in the Shelf Registration Statement and related Prospectus. (g) Is any of the Registrable Securities subject to a pledge? If so, please describe. Yes. No.

Your Interest in the Registrable Securities. (a) In the table below, state State the type of Registrable Securities (Debentures or Common Stock) and the principal amount or number of such Registrable Securities beneficially owned by you. Type Check any of Security the following that applies to you. ¨ I own Debentures: Principal amount and CUSIP No. of the Debentures beneficially owned: CUSIP No(s): ¨ I own shares of Common Stock that were issued upon conversion of the Debentures: Number of Shares Type shares and CUSIP No. of Ownership (direct, or indirect through trust, partnership, etc.)the Common Stock beneficially owned: CUSIP No(s): (b) Other than as set forth in your response to Item 3(a) above, do you beneficially own any other securities of the CompanyLSB? Yes. ¨ Yes ¨ No. (c) If your answer to Item 3(b) above is yes, state the type and type, the aggregate amount and CUSIP No. of such other securities of the Company LSB beneficially owned by you. : Type: Aggregate amount: CUSIP No.: (d) If your response to Item 1(d) is yes, did Did you acquire the securities listed in Item 3(a) above in the ordinary course of business? Yes. ¨ Yes ¨ No. (e) If your response to Item 1(d) is yes, at At the time of your acquisition purchase of the securities listed in Item 3(a) above, did you have any agreements or understandings, direct directly or indirectindirectly, with any person to distribute the securities? Yes. ¨ Yes ¨ No. (f) If your response to Item 3(e) above is yes, please describe such agreements or understandings: Note: If you are an affiliate of a broker-dealer and did not acquire your Registrable Securities in the ordinary course of business or at the time of acquisition had any agreements or understandings, direct or indirect, with any person to distribute the securities, the Company may be required to identify you as an underwriter in the Shelf Registration Statement and related Prospectus. (g) Is any of the Registrable Securities subject to a pledge? If so, please describe. Yes. No.:

Your Interest in the Registrable Securities. (a) In the table below, state the type and amount of Registrable Securities beneficially owned by you. Type of Security Number of Shares Type of Ownership (direct, or indirect through trust, partnership, etc.) (b) Other than as set forth in your response to Item 3(a) above, do you beneficially own any other securities of the Company? Yes. No. (c) If your answer to Item 3(b) above is yes, state the type and the aggregate amount of such other securities of the Company beneficially owned by you. Type: Aggregate amount: (d) If your response to Item 1(d) is yes, did you acquire the securities listed in Item 3(a) above in the ordinary course of business? Yes. No. (e) If your response to Item 1(d) is yes, at the time of your acquisition of the securities listed in Item 3(a) above, did you have any agreements or understandings, direct or indirect, with any person to distribute the securities? Yes. No. (f) If your response to Item 3(e) above is yes, please describe such agreements or understandings: Note: If you are an affiliate of a broker-dealer and did not acquire your Registrable Securities in the ordinary course of business or at the time of acquisition had any agreements or understandings, direct or indirect, with any person to distribute the securities, the Company may be required to identify you as an underwriter in the Shelf Registration Statement and related Prospectus. (g) Is any of the Registrable Securities subject to a pledge? If so, please describe. Yes. No.

Your Interest in the Registrable Securities. (a) In the table below, state State the type of Registrable Securities (Debentures or Common Stock) and the principal amount or number of such Registrable Securities beneficially owned by you. Type Check any of Security the following that applies to you. [ ] I own Debentures: Principal amount and CUSIP No. of the Debentures beneficially owned: CUSIP No(s): [ ] I own shares of Common Stock that were issued upon conversion of the Debentures: Number of Shares Type shares and CUSIP No. of Ownership (direct, or indirect through trust, partnership, etc.)the Common Stock beneficially owned: CUSIP No(s): (b) Other than as set forth in your response to Item 3(a) above, do you beneficially own any other securities of the CompanyImpax? Yes. [ ] Yes [ ] No. (c) If your answer to Item 3(b) above is yes, state the type and type, the aggregate amount and CUSIP No. of such other securities of the Company Impax beneficially owned by you. : Type: Aggregate amount: CUSIP No.: (d) If your response to Item 1(d) is yes, did Did you acquire the securities listed in Item 3(a) above in the ordinary course of business? Yes. [ ] Yes [ ] No. (e) If your response to Item 1(d) is yes, at At the time of your acquisition purchase of the securities listed in Item 3(a) above, did you have any agreements or understandings, direct directly or indirectindirectly, with any person to distribute the securities? Yes. [ ] Yes [ ] No. (f) If your response to Item 3(e) above is yes, please describe such agreements or understandings: Note: If you are an affiliate of a broker-dealer and did not acquire your Registrable Securities in the ordinary course of business or at the time of acquisition had any agreements or understandings, direct or indirect, with any person to distribute the securities, the Company may be required to identify you as an underwriter in the Shelf Registration Statement and related Prospectus. (g) Is any of the Registrable Securities subject to a pledge? If so, please describe. Yes. No.: