INVESTMENT SUB-ADVISORY AGREEMENT RELATING TO EATON VANCE HEXAVEST U. S. EQUITY FUND

EXHIBIT (d)(23)

RELATING TO

XXXXX XXXXX HEXAVEST U. S. EQUITY FUND

This INVESTMENT SUB-ADVISORY AGREEMENT (“Agreement”) effective this 29th day of August, 2012 is between Xxxxx Xxxxx Management, a Massachusetts business trust (“Adviser”), and Hexavest Inc., a Quebec corporation (“Sub-Adviser”).

WHEREAS, Xxxxx Xxxxx Hexavest U. S. Equity Fund (“Fund”), a series of Xxxxx Xxxxx Growth Trust (“Trust”), is registered under the Investment Company Act of 1940, as amended (“1940 Act”), as an open-end, management investment company; and

WHEREAS, pursuant to an Investment Advisory and Administrative Agreement dated August 29, 2012 (“Advisory Agreement”), a copy of which has been provided to the Sub-Adviser, the Trust has retained the Adviser to render advisory and management services to the Fund (as described more fully below); and

WHEREAS, pursuant to authority granted to the Adviser in the Advisory Agreement, the Adviser wishes to retain the Sub-Adviser to furnish investment advisory services to the Fund and the Adviser, and the Sub-Adviser is willing to furnish such services to the Fund and the Adviser.

NOW, THEREFORE, in consideration of the promises and mutual covenants herein contained, it is agreed between the Adviser and the Sub-Adviser as follows:

Appointment. The Adviser hereby appoints the Sub-Adviser to act as the investment sub-adviser for and to manage the investment and reinvestment of that portion of the Fund’s assets that shall be allocated to the Sub-Adviser (“Portfolio”), subject to the supervision of the Adviser, for the period and on the terms set forth in this Agreement. The Sub-Adviser accepts such appointment and agrees to furnish the services herein set forth herein for the period and on the terms set forth in this Agreement.

Subject to the requirements of the 1940 Act, the Adviser has the authority in its discretion to alter the allocation of the Fund’s assets among the Sub-Adviser, the Adviser and any other appointed sub-adviser upon reasonable notice to the Sub-Adviser.

Sub-Adviser Duties. Subject to the supervision of the Board and the Adviser, the Sub-Adviser will provide a continuous investment program for the Portfolio and determine, in its discretion, the composition of the assets of the Portfolio, including the determination of the purchase, retention, or sale of the securities, cash, and other investments for the Portfolio. The Sub-Adviser will provide investment research and conduct a continuous program of evaluation, investment, sale, and reinvestment of the Portfolio’s assets by determining (a) the securities and other investments that shall be purchased, entered into, sold, closed, and/or exchanged for the Portfolio; (b) when these transactions should be executed, and (c) what portion of the assets of the Portfolio should be held in various securities and other investments in which the Fund is permitted to invest. The Sub-Adviser is authorized, in its sole discretion and without prior consultation with

the Adviser or the Trust, to buy, sell, and otherwise trade in any of the types of securities and investment instruments permitted by the Fund’s Registration Statement.

The Sub-Adviser will provide the services under this Agreement in accordance with the Trust’s Declaration of Trust, By-Laws, and the Fund’s investment objective(s), policies and procedures and restrictions as stated in the Trust’s Registration Statement for the Fund as filed with the U.S. Securities and Exchange Commission (“SEC”) under the Securities Act of 1933, as amended (“1933 Act”), and the 1940 Act, as from time to time amended (“Registration Statement”). The Adviser shall promptly provide the Sub-Adviser with copies of any amendment to the Registration Statement prior to the commencement of this Agreement and shall provide the Sub-Adviser with any other amendment to the Registration Statement promptly following its filing with the SEC as well as any sticker supplements to the Fund’s prospectus or statement of additional information relevant to the Sub-Adviser or its management of the Fund. Sub-Adviser’s services under this Agreement also will be provided in accordance with any investment parameters for the Fund (including portfolio risk limits) that are mutually agreed to in writing by the Adviser and the Sub-Adviser.

The Sub-Adviser further agrees as follows:

The Sub-Adviser shall perform its duties hereunder in accordance with (i) the 1940 Act and all rules and regulations thereunder, (ii) all other applicable federal and state laws and regulations, (iii) any procedures adopted by the Board and deemed applicable by the Adviser to the Fund (provided that the Sub-Adviser has been or will be provided by the Adviser with a copy of any current or future procedures and has been provided with a reasonable period of time to understand and adapt to such procedures) (“Fund Procedures”), (iv) the provisions of the Fund’s Registration Statement (as described above), and (v) the Sub-Adviser’s operating policies and procedures provided to the Adviser. The Sub-Adviser shall exercise reasonable care in the performance of its duties under the Agreement. With respect to (iii) above, by executing this Agreement, the Sub-Adviser acknowledges that it has received from the Adviser written copies of the current Fund Procedures and has had a reasonable period of time to understand and adapt to such Procedures.

The Sub-Adviser will manage the Portfolio so that it meets the income and asset diversification requirements of Section 851 of the Internal Revenue Code of 1986, as amended (“Code”). The Sub-Adviser shall not be responsible for compliance with Section 851 of the Code with respect to any portions of the Fund that are not part of the Portfolio.

c. The Sub-Adviser shall exercise voting authority with respect to proxies that the Fund is entitled to vote with regard to securities in the Portfolio, provided that such authority may be revoked in whole or in part by the Adviser at any time upon notice to the Sub-Adviser and provided further that the exercise of such authority shall be in accordance with the relevant Fund Procedures. As provided in the Fund Procedures, the Sub-Adviser shall exercise its proxy voting authority hereunder in accordance with such proxy voting policies and procedures of the Sub-Adviser as are approved by the Adviser and the Board. The Sub-Adviser shall provide such information relating to its exercise of proxy voting authority hereunder (including the manner in which it has voted proxies and its resolution of conflicts of interest) as reasonably requested by the Adviser from time to time. The Sub-Adviser shall provide the proxy voting history for the Portfolio to the Fund’s administrator or any third party agent designated by the administrator (currently

Broadridge) in a timely manner for inclusion in the Fund’s requisite Form N-PX.

The Sub-Adviser will assist the Custodian and the Adviser in determining or confirming, consistent with the relevant Fund Procedures and as stated in the Registration Statement, the value of any portfolio securities or other assets of the Fund for which the Custodian or the Adviser seeks assistance from, or identifies for review by, the Sub-Adviser and otherwise perform such duties as sub-adviser for the Portfolio as are specifically described in such Fund Procedures. The parties acknowledge that the Sub-Adviser is not a custodian of the Trust’s assets and will not take possession or custody of such assets.

Following the end of each of the Fund’s fiscal quarters, the Sub-Adviser will assist the Fund’s administrator (currently Xxxxx Xxxxx Management) in its preparation of any reports required by applicable rules and regulations, such as Form N-CSR, Form-NSAR and Form N-Q, to be filed by the Fund as well as any discussion of the Portfolio’s performance required by applicable law. The Sub-Adviser will also provide periodic commentaries regarding the performance of the Portfolio as reasonably requested by the Adviser, which shall be subject to review and approval by the Adviser. The Sub-Adviser also will provide to the Trust any certifications relating to the content of any such report, discussion or commentary as required by relevant Fund Procedures or as is otherwise reasonably requested by the Trust.

The Sub-Adviser will complete and deliver to the Adviser for each quarter by the 10^th calendar day of the following quarter (i) a written compliance checklist in a form provided by the Adviser, (ii) a written investment oversight questionnaire in a form provided by the Adviser, (iii) a risk management and related analytic report in a format agreed to in advance by the Adviser and Sub-Adviser, and (iv) such other reports as may be reasonably requested by the Adviser.

The Sub-Adviser will make available to the Trust and the Adviser, promptly upon request, any of the investment records and ledgers for the Portfolio maintained by the Sub-Adviser (which shall not include the records and ledgers maintained by the Custodian, portfolio accounting agent or other service providers for the Trust) as are necessary to assist the Trust and the Adviser in complying with requirements of the 1940 Act and the Investment Advisers Act of 1940, as amended (“Advisers Act”), and the rules under each, as well as other applicable securities laws. The Sub-Adviser will furnish to regulatory authorities, having the requisite authority over the Fund, any information or reports in connection with the Sub-Adviser’s services to the Fund and the Adviser that may be requested in order to ascertain whether the operations of the Fund are being conducted in a manner consistent with applicable laws and regulations.

The Sub-Adviser will provide periodic reports to the Board (for consideration at meetings of the Board) on the investment program for the Portfolio and the investments in the Portfolio in a format agreed to in advance by the Adviser and Sub-Adviser and such other special reports as the Board or the Adviser may reasonably request, provided the format of such special reports is agreed to in advance by the Adviser and Sub-Adviser.

The Sub-Adviser will maintain a fidelity bond, as well as insurance for its directors and officers and errors and omissions in an adequate amount based on the Sub-Adviser’s assets under management and the scope of its business.

Nothing in this Sub-Advisory Agreement shall prevent the Sub-Adviser from acting as investment adviser for any other person, firm, corporation or other entity and shall not in any way restrict the Sub-Adviser or any of its stockholders, directors, officers or employees from buying, selling or trading any securities for its or their own account or for the account of others from whom it or they may be acting; provided that such activities are in compliance with U.S. federal securities laws and will not adversely affect the performance by any party of its duties under this Sub-Advisory Agreement.

Broker-Dealer Selection and Portfolio Transaction Information. The Sub-Adviser is authorized to place all orders for the purchase or sale of portfolio securities and investment instruments permitted by the Fund’s Registration Statement for the Portfolio either directly with the issuer or with brokers or dealers selected by the Sub-Adviser. To that end, the Sub-Adviser is authorized as the agent of the Fund to give instructions to the Trust’s custodian (“Custodian”) as to deliveries of securities and investment instruments and payments of cash for the account of the Fund. In connection with the selection of such brokers or dealers and the placing of orders for the Portfolio, the Sub-Adviser shall follow the relevant Fund Procedures, including the Policies and Procedures Relating to Brokerage Allocation and Use of Fund Commissions. The Sub-Adviser will report on brokerage allocation to the Trust’s Board periodically indicating the broker-dealers to which such allocations have been made and the basis therefore.

The Sub-Adviser will arrange for the transmission to the Custodian on a daily basis such confirmation, trade tickets, and other documents and information, including, but not limited to, Cusip, Cedel, or other numbers that identify securities to be purchased or sold on behalf of the Portfolio, as may be reasonably necessary to enable the Custodian to perform its administrative and recordkeeping responsibilities with respect to the Trust.

Disclosure about Sub-Adviser. The Sub-Adviser has received and reviewed the most current amendment to the Registration Statement for the Trust relating to the initial offering of Fund shares that contains disclosure about the Sub-Adviser, and represents and warrants that, with respect to the disclosure about the Sub-Adviser and its investment process or personnel, and securities or other investments permitted for investment for the Portfolio, including the risks of such securities or other investments, such Registration Statement, as of the date hereof, contains no untrue statement of any material fact or omits to state a material fact that would be necessary in order to make the statements contained therein, in light of the circumstances under which they were made, not misleading. The Sub-Adviser further represents and warrants that it is a duly registered investment adviser under the Advisers Act and will maintain such registration so long as this Agreement remains in effect. The Adviser hereby acknowledges that it has received a copy of the Sub-Adviser’s Form ADV (as filed with the SEC) prior to entering into this Agreement.

Duties of the Adviser. The Adviser undertakes to provide the Sub-Adviser with reasonable advance written notice of any action taken by the Adviser or the Trust’s Board of Trustees (“Board”) that is likely to have any impact on the Sub-Adviser or its ability to provide services under this Agreement including, without limitation, any change to (i) the Fund’s investment objective, strategies, policies, and restrictions, (ii) the Fund Procedures, or (iii) the Fund’s Registration Statement as it relates to the services provided by the Sub-Adviser to the Fund. The Adviser agrees that, provided it is within its ability, it will allow for a reasonable implementation

period for any such action and Sub-Adviser agrees it will make a reasonable effort to implement any such action within such implementation period.

Expenses. During the term of this Agreement, the Sub-Adviser will pay all expenses incurred by it and its staff and for their activities in connection with its duties under this Agreement, including, but not limited to, rental and overhead expenses, expenses of the Sub-Adviser’s personnel, insurance of the Sub-Adviser and its personnel, research services (except as permitted under the Fund Procedures), and taxes of the Sub-Adviser. The Sub-Adviser will not be responsible for extraordinary expenses relating to inspections, investigations, inquiries and other actions by regulatory authorities except to the extent that such extraordinary expenses specifically relate to the Sub-Adviser’s services provided to the Portfolio or are the result of the actions or omissions of the Sub-Adviser or any affiliated person of the Sub-Adviser, and each person, if any, who, within the meaning of Section 15 of the 1933 Act is a Controlling Person the Sub-Adviser.

The Adviser and the Trust shall be responsible for all expenses of the Adviser’s and Fund’s operations, respectively, including, without limitation, those described in the Advisory Agreement.

Compensation. For the services provided to the Fund, the Adviser will pay the Sub-Adviser an annual fee equal to the amount specified in Schedule A hereto payable monthly in arrears on the last business day of each month. The fee will be appropriately prorated to reflect any portion of a calendar month that this Agreement is not in effect. The Adviser is solely responsible for the payment of fees to the Sub-Adviser, and the Sub-Adviser agrees to seek payment of its fees solely from the Adviser. The Trust shall have no liability for Sub-Adviser’s fee hereunder.

Materials.

During the term of this Agreement, the Adviser agrees to furnish the Sub-Adviser at its principal office all prospectuses, statements of additional information, and sticker supplements relevant to the Sub-Adviser or its management of the Portfolio, as well as proxy statements and reports to shareholders prepared for distribution to shareholders of the Fund, which refer to the Sub-Adviser, prior to the use thereof, and neither the Adviser nor the Trust shall use any such materials if the Sub-Adviser reasonably objects in writing within 3 business days (or such other period as may be mutually agreed) after receipt thereof. The Sub-Adviser’s right to object to such materials is limited to reasonable objections with respect to the accuracy or completeness of the disclosure in such documents or reports.

It is understood that the name “Hexavest” or any derivative thereof or logos associated with that name are the valuable property of the Sub-Adviser and its affiliates and that the Fund or its affiliates have the right to use such name (or derivatives or logos) in offering materials of the Fund and for so long as the Sub-Adviser is a sub-adviser to Portfolio. Upon termination of this Agreement the Fund shall as soon as is reasonably possible cease to use such names (or derivatives or logos).

It is understood that the name “Xxxxx Xxxxx Management” or any derivative thereof or logos associated with that name are the valuable property of the Adviser and its affiliates and that the Sub-Adviser has the right to use such name (or derivatives or logos) in client lists. Any other use shall require approval in advance from the Adviser. Upon termination of this Agreement the Sub-Adviser shall as soon as is reasonably possible cease to use such name (or derivatives or logos).

Compliance.

As required by Rule 206(4)-7 under the Advisers Act, the Sub-Adviser has adopted written policies and procedures reasonably designed to prevent violation by it, or any of its supervised persons, of the Advisers Act and the rules under the Advisers Act and all other laws and regulations relevant to the performance of its duties under this Agreement (“Sub-Adviser Procedures”). The Sub-Adviser has designated a chief compliance officer (“CCO”) responsible for administering the Sub-Adviser Procedures. The CCO shall provide to the Adviser and/or the Trust and their respective CCOs written compliance reports relating to the operations and compliance procedures of the Sub-Adviser as may be required by law or regulation or as are otherwise reasonably requested. The Sub-Adviser agrees to implement other or additional compliance techniques as the Adviser or the Board may reasonably request, including written compliance procedures, provided that doing so would not cause the Sub-Adviser to incur additional significant fees or expenses or otherwise conflict with the Sub-Adviser’s compliance program.

The Sub-Adviser agrees that, if legally permitted, it shall promptly notify (orally or in writing), the Adviser and the Trust if the SEC has: commenced an examination of the Sub-Adviser, censured the Sub-Adviser; placed limitations upon its activities, functions or operations; suspended or revoked its registration as an investment adviser; commenced proceedings or an investigation (formally or informally) that may result in any of these actions; or corresponded with the Sub-Adviser including sending a deficiency letter or raising issues about the business, operations, or practices of the Sub-Adviser, which may have a material impact on the Sub-Adviser’s ability to manage the Portfolio. The Sub-Adviser further agrees to promptly notify the Adviser and the Trust upon detection of any breach of any of the Fund Procedures or material violation of any applicable law or regulation, including the 1940 Act and Subchapter M of the Code, relating to the Portfolio, or upon detection of any violation of the Sub-Adviser Procedures that relate to the Portfolio or Sub-Adviser’s activities as an investment sub-adviser generally. The Sub-Adviser further agrees to promptly notify the Adviser and the Trust of any material fact known to the Sub-Adviser relating to the Sub-Adviser that is not contained in the Fund’s Registration Statement, prospectus or statement of additional information, or any amendment or supplement thereto, or if any statement contained therein that becomes untrue in any material respect.

The Adviser agrees that it shall promptly notify, if legally permitted, the Sub-Adviser (1) in the event that the SEC has censured the Adviser or the Trust with respect to the Fund; placed limitations upon either of their activities, functions, or operations; suspended or revoked the Adviser’s registration as an investment adviser; or has commenced proceedings or an investigation that may result in any of these actions, (2) upon having a reasonable basis for believing that the Trust has ceased to qualify or might not qualify as a regulated investment company under Subchapter M of the Internal Revenue Code, or (3) of any regulatory matter involving the Fund’s investments or investment practices.

The Sub-Adviser will provide the Adviser with such reports, presentations, certifications and other information as the Adviser may reasonably request from time to time concerning the business and operations of the Sub-Adviser in performing services hereunder or generally concerning the Sub-Adviser’s investment advisory services, the Sub-Adviser’s compliance with applicable federal, state and local law and regulations, and other matters that are likely to have a material impact on the Sub-Adviser’s duties hereunder.

10.

Books and Records. The Sub-Adviser hereby agrees that all records which it maintains for the Portfolio are the property of the Trust and further agrees to surrender promptly to the Trust any of such records upon the Trust’s or the Adviser’s request in compliance with the requirements of Rule 31a-3 under the 1940 Act, although the Sub-Adviser may, at its own expense, make and retain a copy of such records. The Sub-Adviser further agrees to preserve for the periods prescribed by Rule 31a-2 under the 1940 Act the records required to be maintained by Rule 31a-l under the 1940 Act.

11.

Cooperation; Confidentiality. Each party to this Agreement agrees to cooperate with the other party and with all appropriate governmental authorities having the requisite jurisdiction (including, but not limited to, the SEC) in connection with any investigation or inquiry relating to this Agreement, the Fund or the Trust. Subject to the foregoing, each party shall treat as confidential all information pertaining to the Sub-Adviser, Adviser, the Fund or its shareholders or the Trust (as applicable), their actions with respect to the Fund and the Trust, and the business, operations and clients of the Adviser and the Sub-Adviser, except that the aforesaid information need not be treated as confidential if (a) required to be disclosed under applicable law, (b) generally available to the public through means other than by disclosure by the parties, or (c) available from a source other than the Adviser, Sub-Adviser or the Trust. Sub-Adviser acknowledges that the Adviser will have continuous access to the Portfolio’s holdings and information relating to Portfolio management that is in the possession of the Fund’s custodian.

Neither the Adviser nor Sub-Adviser shall disclose or disseminate non-public information regarding the Portfolio, including a list of portfolio securities identified as being held by the Portfolio, which it receives or has access to in the course of performing its duties under this Agreement except as may be permitted by relevant Fund Procedures. Neither party shall use its knowledge of non-public information regarding the Portfolio as a basis to place or recommend any securities transactions for its own benefit, or the benefit of one or more of its clients, to the detriment of the Fund. To the extent that either Party has delegated any duties or services to an affiliate or a third-party, it shall ensure that any such affiliate or third-party abides by the confidentiality provision of this Section 11. Each Party shall ensure that any such affiliate or third-party shall enter into a written confidentiality agreement providing for the non-disclosure of such non-public information. Notice of such agreement shall be provided to the Trust.

12.

Control. Notwithstanding any other provision of the Agreement, it is understood and agreed that the Trust shall at all times retain the ultimate responsibility for and control of all functions performed pursuant to this Agreement and has reserved the right to reasonably direct any action hereunder taken on its behalf by the Sub-Adviser.

13.

Liability.

Except as may otherwise be required by the 1940 Act or the rules thereunder or other applicable law, the Adviser agrees that the Sub-Adviser, any affiliated person of the Sub-Adviser, and each person, if any, who, within the meaning of Section 15 of the 1933 Act controls or is a controlling person (“Controlling Person”) of the Sub-Adviser shall not be liable for, or subject to any damages, expenses, or losses in connection with, any act or omission connected with or arising out of any services rendered under this Agreement, except by reason of willful misfeasance, bad faith, or gross negligence in the performance of the Sub-Adviser’s duties, or any breach by the Sub-Adviser of its obligations or duties under this Agreement.

The Sub-Adviser agrees that neither the Trust nor the Fund shall bear any responsibility or shall be subject to any liability for any damages, expenses, or losses of Sub-Adviser connected with or arising out of its services under this Agreement, except to the extent that such damages, expense or loss (i) was as a result of actions taken or failed to be taken, or instructions specifically given to the Sub-Adviser, by the Trust or the Adviser, (ii) was as a result of the willful misfeasance, bad faith, or gross negligence of the Adviser or any breach or reckless disregard of the Adviser’s obligations and duties to the Fund and its shareholders under the federal securities laws or the Code, and (iii) may be based upon any untrue statement or alleged untrue statement of a material fact contained in the Fund’s Registration Statement, prospectus or statement of additional information, or any amendment thereof or any supplement thereto, or the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, unless such statement or omission was made in reliance upon information furnished by the Sub-Adviser to the Adviser.

14.

Indemnification.

The Adviser agrees to indemnify and hold harmless the Sub-Adviser, any affiliated person of the Sub-Adviser, and each person, if any, who, within the meaning of Section 15 of the 1933 Act is a Controlling Person of the Sub-Adviser (the Sub-Adviser and all of such persons being referred to as “Sub-Adviser Indemnified Persons”) against any and all losses, claims, damages, liabilities, or litigation (including reasonable legal and other expenses) to which a Sub-Adviser Indemnified Person may become subject under the 1933 Act, the 1940 Act, the Advisers Act, under any other statute, at common law or otherwise, arising out of the Adviser’s responsibilities as Adviser to the Fund which (i) may be based upon the Adviser’s gross negligence, willful misfeasance, or bad faith in the performance of its duties, or by reason of the Adviser’s reckless disregard of its obligations and duties to the Fund and its shareholders under the federal securities laws or the Code, or (ii) may be based upon any untrue statement or alleged untrue statement of a material fact contained in the Fund’s Registration Statement, prospectus or statements of additional information, or any amendment thereof or any supplement thereto, or the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, unless such statement or omission was made in reliance upon information furnished by a Sub-Adviser Indemnified Person to the Adviser or the Trust or to any affiliated person of the Adviser; provided however, that in no case shall the indemnity in favor of the Sub-Adviser Indemnified Person be deemed to protect such person against any liability to which such person would otherwise be subject by reason of willful misfeasance, bad faith, or gross negligence in the performance of its duties, or by reason of its reckless disregard of its obligations or duties under this Agreement.

Notwithstanding Section 13 of this Agreement, the Sub-Adviser agrees to indemnify and hold harmless the Adviser, any affiliated person of the Adviser, and any Controlling Person of the Adviser (the Adviser and all of such persons being referred to as “Adviser Indemnified Persons”) against any and all losses, claims, damages, liabilities, or litigation (including reasonable legal and other expenses) to which an Adviser Indemnified Person may become subject under the 1933 Act, 1940 Act, the Advisers Act, under any other statute, at common law or otherwise, arising out of the Sub-Adviser’s responsibilities as Sub-Adviser of the Portfolio which (i) may be based upon the Sub-Adviser’s gross negligence, willful misfeasance, or bad faith in the performance of its duties, or by reason of the Sub-Adviser’s reckless disregard of its obligations or duties under this Agreement, or (ii) may be based upon any untrue statement or alleged untrue statement of a

material fact contained in the Fund’s Registration Statement, prospectus or statement of additional information, or any amendment or supplement thereto, or the omission or alleged omission to state therein a material fact known or which should have been known to the Sub-Adviser and was required to be stated therein or necessary to make the statements therein not misleading, unless such statement or omission was made in reliance upon information furnished by an Adviser Indemnified Person to the Adviser or the Trust or to any affiliated person of the Adviser; provided however, that in no case shall the indemnity in favor of the Adviser Indemnified Person be deemed to protect such person against any liability to which such person would otherwise be subject by reason of willful misfeasance, bad faith, or gross negligence in the performance of its duties, or by reason of its reckless disregard of its obligations or duties under this Agreement.

The Adviser shall not be liable under Paragraph (a) of this Section 14 with respect to any claim made against a Sub-Adviser Indemnified Person unless such Sub-Adviser Indemnified Person shall have notified the Adviser in writing within a reasonable time after the summons or other first legal process giving information of the nature of the claim shall have been served upon such Sub-Adviser Indemnified Person (or after such Sub-Adviser Indemnified Person shall have received notice of such service on any designated agent), but failure to notify the Adviser of any such claim shall not relieve the Adviser from any liability which it may have to the Sub-Adviser Indemnified Person against whom such action is brought except to the extent the Adviser is prejudiced by the failure or delay in giving such notice. In case any such action is brought against the Sub-Adviser Indemnified Person, the Adviser will be entitled to participate, at its own expense, in the defense thereof or, after notice to the Sub-Adviser Indemnified Person, to assume the defense thereof, with counsel reasonably satisfactory to the Sub-Adviser Indemnified Person. If the Adviser assumes the defense of any such action and the selection of counsel by the Adviser to represent the Adviser and the Sub-Adviser Indemnified Person would result in a conflict of interests and therefore, would not, in the reasonable judgment of the Sub-Adviser Indemnified Person, adequately represent the interests of the Sub-Adviser Indemnified Person, the Adviser will, at its own expense, assume the defense with counsel to the Adviser and, also at its own expense, with separate counsel to the Sub-Adviser Indemnified Person, which counsel shall be reasonably satisfactory to the Adviser and to the Sub-Adviser Indemnified Person. The Adviser shall not have the right to compromise on or settle the litigation without the prior written consent of the Sub-Adviser Indemnified Person if the compromise or settlement results, or may result in a finding of wrongdoing on the part of the Sub-Adviser Indemnified Person.

The Sub-Adviser shall not be liable under Paragraph (b) of this Section 14 with respect to any claim made against an Adviser Indemnified Person unless such Adviser Indemnified Person shall have notified the Sub-Adviser in writing within a reasonable time after the summons or other first legal process giving information of the nature of the claim shall have been served upon such Adviser Indemnified Person (or after such Adviser Indemnified Person shall have received notice of such service on any designated agent), but failure to notify the Sub-Adviser of any such claim shall not relieve the Sub-Adviser from any liability which it may have to the Adviser Indemnified Person against whom such action is brought except to the extent the Sub-Adviser is prejudiced by the failure or delay in giving such notice. In case any such action is brought against the Adviser Indemnified Person, the Sub-Adviser will be entitled to participate, at its own expense, in the defense thereof or, after notice to the Adviser Indemnified Person, to assume the defense thereof, with counsel reasonably satisfactory to the Adviser Indemnified Person. If the Sub-Adviser assumes the defense of any such action and the selection of counsel by the Sub-Adviser to represent both the Sub-Adviser and the Adviser Indemnified Person would result in a conflict of interests and therefore, would not, in the reasonable judgment of the Adviser Indemnified Person,

adequately represent the interests of the Adviser Indemnified Person, the Sub-Adviser will, at its own expense, assume the defense with counsel to the Sub-Adviser and, also at its own expense, with separate counsel to the Adviser Indemnified Person, which counsel shall be reasonably satisfactory to the Sub-Adviser and to the Adviser Indemnified Person. The Sub-Adviser shall not have the right to compromise on or settle the litigation without the prior written consent of the Adviser Indemnified Person if the compromise or settlement results, or may result in a finding of wrongdoing on the part of the Adviser Indemnified Person.

15.

Duration and Termination.

This Agreement shall become effective on the date first stated above, subject to the condition that the Trust’s Board, including a majority of those Trustees who are not interested persons (as such term is defined in the 0000 Xxx) of the Adviser or the Sub-Adviser, shall have approved this Agreement in the manner required by the 1940 Act. Unless terminated as provided herein, this Agreement shall remain in full force and effect through and including the second anniversary of the execution of this Agreement and shall continue in full force and affect indefinitely thereafter, but only so long as such continuance is specifically approved at least annually by (a) the Board, or by the vote of a majority of the outstanding voting securities (as defined in the 0000 Xxx) of the Trust, and (b) the vote of a majority of those Trustees who are not interested persons (as such term is defined in the 0000 Xxx) of any such party to this Agreement cast in person at a meeting called for the purpose of voting on such approval.

Notwithstanding the foregoing, this Agreement may be terminated: (a) by the Adviser at any time without payment of any penalty, upon 60 days’ prior written notice to the Sub-Adviser and the Trust; provided, however, that the Adviser may terminate this Agreement immediately without penalty in the event Sub-Adviser is unable to adopt compliance techniques, in accordance with the terms of Section 9. a. of this Agreement; (b) at any time without payment of any penalty by the Trust, by the Trust’s Board or a majority of the outstanding voting securities of the Trust, upon 60 days’ prior written notice to the Adviser and the Sub-Adviser, or (c) by the Sub-Adviser upon 60 days prior written notice, provided, however, that the Sub-Adviser may terminate this Agreement at any time without penalty, effective upon written notice to the Adviser and the Trust, in the event either the Sub-Adviser (acting in good faith) or the Adviser ceases to be registered as an investment adviser under the Advisers Act or otherwise becomes legally incapable of providing investment management services pursuant to its respective contract with the Trust.

In the event of termination for any reason, all records of the Trust shall promptly be returned to the Adviser or the Trust, free from any claim or retention of rights in such record by the Sub-Adviser, although the Sub-Adviser may, at its own expense, make and retain a copy of such records. This Agreement shall automatically terminate in the event of its assignment (as such term is described in the 1940 Act). In the event this Agreement is terminated or is not approved in the manner described above, the Sections or Paragraphs numbered 11, 13, 14, 15(c) and 18 of this Agreement shall remain in effect, as well as any applicable provision of this Section 15 and, to the extent that only amounts are owed to the Sub-Adviser as compensation for services rendered while the agreement was in effect as provided in Section 7.

16.

Notices. Any notice must be in writing and shall be sufficiently given (a) when delivered in person, (b) when dispatched by electronic mail or electronic facsimile transfer (confirmed in writing by postage prepaid first class air mail simultaneously dispatched), (c) when

sent by internationally recognized overnight courier service (with receipt confirmed by such overnight courier service), or (d) when sent by registered or certified mail, to the other party at the address of such party set forth below or at such other address as such party may from time to time specify in writing to the other party.

If to the Trust:

Xxxxx Xxxxx Growth Trust

Xxx Xxxxxxxxxxxxx Xxxxx

Xxxxxx, XX 00000

Attn: Chief Legal Officer

If to the Adviser:

Xxxxx Xxxxx Management

Xxx Xxxxxxxxxxxxx Xxxxx

Xxxxxx, XX 00000

Attn: Chief Legal Officer

If to the Sub-Adviser:

Hexavest Inc.

0000, xxxx. Xxxx-Xxxxxxxx

Bureau 4200

Xxxxxxxx, Xxxxxx X0X 0X0

Attention: Vice President, Legal Affairs

Fax:

17.

Amendments. No provision of this Agreement may be changed, waived, discharged or terminated orally, but only by an instrument in writing signed by the party against which enforcement of the change, waiver, discharge or termination is sought, and no material amendment of this Agreement shall be effective until approved as required by applicable law. The Sub-Adviser shall furnish to the Board such information as may be reasonably necessary in order for the Board to evaluate this Agreement or any proposed amendments thereto for the purposes of casting a vote pursuant to Section 15 or this Section 17 of this Agreement.

18.

Miscellaneous.

This Agreement shall be governed by the laws of the Commonwealth of Massachusetts, provided that nothing herein shall be construed in a manner inconsistent with the 1940 Act, the Advisers Act or rules or orders of the SEC thereunder, and without regard for the conflicts of laws principle thereof. The term “affiliate” or “affiliated person” as used in this Agreement shall mean “affiliated person” as defined in Section 2(a)(3) of the 0000 Xxx.

The Adviser and the Sub-Adviser acknowledge that the Trust enjoys the rights of a third-party beneficiary under this Agreement, and the Adviser acknowledges that the Sub-Adviser enjoys the rights of a third party beneficiary under the Advisory Agreement.

The Sub-Adviser expressly acknowledges the provision in the Declaration of Trust of the Adviser limiting the personal liability of the Trustee and officers of the Adviser, and the Sub-Adviser hereby agrees that it shall have recourse to the Adviser for payment of claims or obligations as between the Adviser and the Sub-Adviser arising out of this Agreement and shall not seek satisfaction from the Trustee or any officer of the Adviser.

The captions of this Agreement are included for convenience only and in no way define or limit any of the provisions hereof or otherwise affect their construction or effect.

To the extent permitted under Section 15 of this Agreement, this Agreement may only be assigned by any party with the prior written consent of the other party.

If any provision of this Agreement shall be held or made invalid by a court decision, statute, rule or otherwise, the remainder of this Agreement shall not be affected thereby, and to this extent, the provisions of this Agreement shall be deemed to be severable.

Nothing herein shall be construed as constituting the Sub-Adviser as an agent or co-partner of the Adviser, or constituting the Adviser as an agent or co-partner of the Sub-Adviser.

h. This Agreement may be executed in counterparts.

[Signature page follows.]

IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed as of the day and year first above written.

XXXXX XXXXX MANAGEMENT

By:/s/ Xxxxxxx X. Gemma

Name:

Xxxxxxx X. Gemma

Title:

Vice President

HEXAVEST INC.

By:/s/ Vital Xxxxxx

Name:

Vital Xxxxxx

Title:

President and Chief Investment Officer

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INVESTMENT SUB-ADVISORY AGREEMENT RELATING TO EATON VANCE HEXAVEST U. S. EQUITY FUND

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