AGREEMENT AND PLAN OF REORGANIZATION

Exhibit 26(d)

AGREEMENT AND PLAN OF REORGANIZATION

This Agreement and Plan of Reorganization (“Agreement”) is made as of January 11, 2013, by and between Keystone Mutual Funds, a Delaware statutory trust (“Keystone”), on behalf of its series, Keystone Large Cap Growth Fund (the “Acquired Fund”), and MainStay Funds Trust, a Delaware statutory trust (“MainStay Funds”), on behalf of its series, the MainStay Cornerstone Growth Fund (the “Acquiring Fund” and, together with the Acquired Fund, the “Funds”). New York Life Investment Management LLC, a limited liability company organized under the laws of the State of Delaware (“New York Life Investments”), joins this Agreement solely for purposes of paragraphs 4.3 and 8.2, and Cornerstone Capital Management, Inc., a corporation organized under the laws of the State of Minnesota (“Cornerstone”) and Cornerstone Capital Management LLC, a Delaware limited liability company (“Cornerstone LLC”), join this Agreement solely for purposes of paragraphs 4.4 and 8.2.

This Agreement is intended to be and is adopted as a “plan of reorganization” within the meaning of Section 368(a)(1) of the Internal Revenue Code of 1986, as amended (the “Code”). The reorganization will consist of the transfer of all of the assets of the Acquired Fund to the Acquiring Fund in exchange solely for Class A and Class I shares of beneficial interest of the Acquiring Fund (the “Acquiring Fund Shares”), the assumption by the Acquiring Fund of the liabilities of the Acquired Fund specified in paragraph 1.3, and the distribution of the Acquiring Fund Shares to the shareholders of the Acquired Fund in complete liquidation of the Acquired Fund, all upon the terms and conditions hereinafter set forth in this Agreement (the “Reorganization”).

The Board of Trustees of Keystone has determined, with respect to the Acquired Fund, that (1) participation in the Reorganization is in the best interests of the Acquired Fund and its shareholders, and (2) the interests of the existing shareholders of the Acquired Fund would not be diluted as a result of the Reorganization. The Board of Trustees of MainStay Funds has determined, with respect to the Acquiring Fund, that (1) participation in the Reorganization is in the best interests of the Acquiring Fund and its shareholder, and (2) the interests of the existing shareholder of the Acquiring Fund would not be diluted as a result of the Reorganization.

NOW, THEREFORE, in consideration of the premises and of the covenants and agreements hereinafter set forth, the parties hereto covenant and agree as follows:

ARTICLE I

THE REORGANIZATION AND FUND TRANSACTIONS

1.1. The Reorganization. Subject to the requisite approval of the Acquired Fund’s shareholders and the other terms and conditions herein set forth and on the basis of the representations and warranties contained herein, at the Effective Time (as defined in paragraph 2.5), Keystone shall assign, deliver and otherwise transfer the Assets (as defined in paragraph 1.2) of the Acquired Fund, to MainStay Funds on behalf of the Acquiring Fund, and MainStay Funds shall assume the Liabilities (as defined in paragraph 1.3) of the Acquired Fund on behalf of the Acquiring Fund. In consideration of the foregoing, at the Effective Time, MainStay Funds shall, on behalf of the Acquiring Fund, deliver to Keystone on behalf of the Acquired Fund, full

and fractional Class A and Class I Acquiring Fund Shares (to the third decimal place). The number of Acquiring Fund Shares to be delivered shall be determined as set forth in paragraph 2.3.

1.2. Assets of the Acquired Fund. The assets of the Acquired Fund to be acquired by the Acquiring Fund shall consist of all assets and property, including, without limitation, all cash, cash equivalents, securities, receivables (including securities, interests and dividends receivable), commodities and futures interests, rights to register shares under applicable securities laws, any deferred or prepaid expenses shown as an asset on the books of the Acquired Fund at the Effective Time, books and records, and any other property owned by the Acquired Fund at the Effective Time (collectively, the “Assets”).

1.3. Liabilities of the Acquired Fund. The Acquired Fund will discharge all of its liabilities and obligations prior to the Effective Time, other than liabilities and obligations necessary or appropriate for the Acquired Fund’s normal investment operations that were incurred in the ordinary course of business consistent with past practice. The Acquiring Fund shall assume all liabilities of the Acquired Fund existing at the Effective Time (collectively, the “Liabilities”), whether known or unknown.

1.4. Distribution of Acquiring Fund Shares. At the Effective Time (or as soon thereafter as is reasonably practicable), Keystone, on behalf of the Acquired Fund, will distribute the Acquiring Fund Shares received from MainStay Funds pursuant to paragraph 1.1, pro rata to the record holders of the shares of the Acquired Fund determined as of the Effective Time (the “Acquired Fund Shareholders”) in complete liquidation of the Acquired Fund. Holders of Class I shares of the Acquired Fund will receive Class I Shares of the Acquiring Fund, and holders of Class A shares of the Acquired Fund will receive Class A Shares of the Acquiring Fund. Such distribution and liquidation will be accomplished by the transfer of the Acquiring Fund Shares then credited to the account of the Acquired Fund on the books of the Acquiring Fund to open accounts on the share records of the Acquiring Fund in the names of the Acquired Fund Shareholders. The aggregate net asset value of the Acquiring Fund Shares to be so credited to Acquired Fund Shareholders shall be equal to the aggregate net asset value of the then outstanding shares of beneficial interest of the Acquired Fund (the “Acquired Fund Shares”) owned by Acquired Fund Shareholders at the Effective Time. All issued and outstanding shares of the Acquired Fund will simultaneously be redeemed and canceled on the books of the Acquired Fund. The Acquiring Fund shall not issue certificates representing the Acquiring Fund Shares in connection with such exchange.

1.5. Recorded Ownership of Acquiring Fund Shares. Ownership of Acquiring Fund Shares will be shown on the books of the Acquiring Fund’s transfer agent.

1.6. Filing Responsibilities of Acquired Fund. Any reporting responsibility of the Acquired Fund, including, but not limited to, the responsibility for filing regulatory reports, tax returns, or other documents with the Securities and Exchange Commission (“Commission”), any state securities commission, and any Federal, state or local tax authorities or any other relevant regulatory authority, is and shall remain the responsibility of the Acquired Fund.

ARTICLE II

VALUATION

2.1. Net Asset Value of the Acquired Fund. The net asset value of the Acquired Fund Shares shall be the net asset value computed as of the Effective Time, after the declaration and payment of any dividends and/or other distributions on that date, using the valuation procedures described in the then-current prospectus and statement of additional information of the Acquiring Fund to the extent such valuation procedures are consistent with the valuation procedures of the Acquired Fund and in the event of any inconsistency, the parties hereto shall confer and mutually agree on the valuation.

2.2. Net Asset Value of the Acquiring Fund. The net asset value of the Acquiring Fund Shares shall be the same as the net asset value of the Acquired Fund Shares as computed in paragraph 2.1.

2.3. Calculation of Number of Acquiring Fund Shares. The number of Acquiring Fund Shares to be issued (including fractional shares to the third decimal place, if any) in connection with the Reorganization shall be equal to the number of full and fractional Acquired Fund Shares owned by Acquired Fund Shareholders at the Effective Time.

2.4. Joint Direction of Calculation. All computations of value with respect to both the Acquired Fund and the Acquiring Fund shall be made by State Street Bank and Trust Company (“State Street”), in its capacity as accounting agent for the MainStay Funds. Such computations shall be evaluated by New York Life Investments, in its capacity as administrator for the MainStay Funds, in consultation with Cornerstone, the investment adviser to the Acquired Fund. Such computations shall be subject to confirmation by the Acquired Fund’s and Acquiring Fund’s respective transfer agents and independent registered public accounting firms.

2.5. Effective Time. The Effective Time shall be the time at which the Funds calculate their net asset values as set forth in their respective prospectuses (normally the close of regular trading on the New York Stock Exchange (“NYSE”)) on the Closing Date (as defined in paragraph 3.1) (the “Effective Time”).

ARTICLE III

CLOSING

3.1. Closing. The Reorganization, together with related acts necessary to consummate the same (“Closing”), shall occur at the principal office of New York Life Investments on or about January 11, 2013 or at such other place and/or on such other date as to which the parties may agree, provided that MainStay Funds, on behalf of the Acquiring Fund, may unilaterally delay the closing upon prior written notice to Keystone, to allow enough time for sufficient votes of the Acquired Fund’s shareholders to be obtained (the “Closing Date”). All acts taking place at the Closing shall be deemed to take place simultaneously as of the Effective Time.

3.2. Transfer and Delivery of Assets. Keystone shall direct U.S. Bank, N.A. (“U.S. Bank”), as custodian for the Acquired Fund, to deliver, at the Closing, a certificate of an

authorized officer stating that (i) the Assets were delivered in proper form to the Acquiring Fund at the Effective Time, and (ii) all necessary taxes in connection with the delivery of the Assets, including all applicable Federal and state stock transfer stamps, if any, have been paid or provision for payment has been made. The Acquired Fund’s portfolio securities represented by a certificate or other written instrument shall be presented by U.S. Bank, as custodian for the Acquired Fund, to those persons at State Street who have primary responsibility for the safekeeping of the assets of the Acquiring Fund. Such presentation shall be made for examination no later than five (5) business days preceding the Effective Time, and shall be transferred and delivered by the Acquired Fund as of the Effective Time for the account of the Acquiring Fund duly endorsed in proper form for transfer in such condition as to constitute good delivery thereof. U.S. Bank shall deliver to those persons at State Street who have primary responsibility for the safekeeping of the assets of the Acquiring Fund as of the Effective Time by book entry, in accordance with the customary practices of State Street and of each securities depository, as defined in Rule 17f-4 under the Investment Company Act of 1940, as amended (the “1940 Act”), in which the Acquired Fund’s Assets are deposited, the Acquired Fund’s Assets deposited with such depositories. The cash to be transferred by the Acquired Fund shall be delivered by wire transfer of Federal funds at the Effective Time.

3.3. Share Records. Keystone shall direct U.S. Bancorp Fund Services, LLC, in its capacity as transfer agent for the Acquired Fund (the “Transfer Agent”), to deliver at the Closing a certificate of an authorized officer stating that its records contain the names and addresses of the Acquired Fund Shareholders and the number and percentage ownership of outstanding Acquired Fund Shares owned by each such Acquired Fund Shareholder immediately prior to the Closing. The Acquiring Fund shall issue and deliver to the Secretary of the Acquired Fund prior to the Effective Time a confirmation evidencing that the appropriate number of Acquiring Fund Shares will be credited to the Acquired Fund at the Effective Time, or provide other evidence satisfactory to the Acquired Fund as of the Effective Time that such Acquiring Fund Shares have been credited to the Acquired Fund’s accounts on the books of the Acquiring Fund.

3.4. Postponement of Effective Time. In the event that at the Effective Time (a) the NYSE or another primary trading market for portfolio securities of the Acquiring Fund or the Acquired Fund (each, an “Exchange”) shall be closed to trading or trading thereupon shall be restricted, or (b) trading or the reporting of trading on such Exchange or elsewhere shall be disrupted so that, in the judgment of the Board of Trustees of Keystone or the Board of Trustees of MainStay Funds, accurate appraisal of the value of the net assets of the Acquired Fund or the Acquiring Fund, respectively, is impracticable, the Effective Time shall be postponed until the first business day after the day when trading shall have been fully resumed and reporting shall have been restored.

ARTICLE IV

REPRESENTATIONS AND WARRANTIES

4.1. Representations and Warranties of Keystone. Except as has been fully disclosed to the Acquiring Fund in a written instrument executed by an officer of Keystone, Keystone, on behalf of the Acquired Fund, represents and warrants to MainStay Funds as follows:

(a) The Acquired Fund is a duly established series of Keystone, which is a statutory trust duly organized, validly existing and in good standing under the laws of the State of Delaware, with power under Keystone’s Declaration of Trust and By-Laws, each as amended from time to time, to own all of its properties and assets and to carry on its business as it is presently conducted.

(b) Keystone is registered with the Commission as an open-end management investment company under the 1940 Act, and the registration of the Acquired Fund Shares under the Securities Act of 1933, as amended (the “1933 Act”), is in full force and effect.

(c) No consent, approval, authorization, or order of any court or governmental authority is required for the consummation by Keystone on behalf of the Acquired Fund of the transactions contemplated herein, except such as have been obtained under the 1933 Act, the Securities Exchange Act of 1934, as amended (the “1934 Act”), and the 1940 Act, and such as may be required under state securities laws.

(d) The current prospectus, statement of additional information, shareholder reports, marketing and other related materials of the Acquired Fund and each prospectus and statement of additional information of the Acquired Fund used at all times prior to the date of this Agreement conform or conformed at the time of its use in all material respects to the applicable requirements of the 1933 Act and the 1940 Act and the rules and regulations of the Commission thereunder and does not or did not at the time of its use include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not materially misleading.

(e) At the Effective Time, Keystone, on behalf of the Acquired Fund, will have good and marketable title to the Assets and full right, power, and authority to sell, assign, transfer and deliver such Assets hereunder free of any liens or other encumbrances, and upon delivery and payment for such Assets, MainStay Funds, on behalf of the Acquiring Fund, will acquire good and marketable title thereto, subject to no restrictions on the full transfer thereof, including such restrictions as might arise under the 1933 Act.

(f) Keystone is not engaged currently, and the execution, delivery and performance of this Agreement will not result, in (i) a violation of Delaware law or a material violation of its Declaration of Trust and By-Laws, or of any agreement, indenture, instrument, contract, lease or other undertaking to which Keystone, on behalf of the Acquired Fund, is a party or by which it is bound, or (ii) the acceleration of any obligation, or the imposition of any penalty, under any agreement, indenture, instrument, contract, lease, judgment or decree to which Keystone, on behalf of the Acquired Fund, is a party or by which it is bound.

(g) All material contracts or other commitments of the Acquired Fund (other than this Agreement and certain investment contracts, including options, futures, forward contracts and other similar instruments) will terminate without liability or obligation to the Acquired Fund on or prior to the Effective Time.

(h) Except as otherwise disclosed to and accepted by MainStay Funds, on behalf of the Acquiring Fund, in writing, no litigation or administrative proceeding or investigation of or before any court or governmental body is presently pending or, to Keystone’s knowledge, threatened against the Acquired Fund or any of its properties or assets that, if adversely determined, would materially and adversely affect its financial condition or the conduct of its business. Keystone, on behalf of the Acquired Fund, knows of no facts which might form the basis for the institution of such proceedings and is not a party to or subject to the provisions of any order, decree or judgment of any court or governmental body that materially and adversely affects its business or its ability to consummate the transactions herein contemplated.

(i) The financial statements, including the notes thereto, the Financial Highlights and the Schedule of Investments, of the Acquired Fund at June 30, 2012 have been audited by Ernst & Young LLP, independent registered public accounting firm, and are in accordance with accounting principles generally accepted in the United States of America (“GAAP”) consistently applied, and such statements (copies of which have been furnished to the Acquiring Fund) present fairly, in all material respects, the financial condition of the Acquired Fund as of such date in accordance with GAAP, and there are no known contingent liabilities of the Acquired Fund required to be reflected on a balance sheet (including the notes thereto) in accordance with GAAP as of such date not disclosed therein.

(j) Since June 30, 2012, there has not been any material adverse change in the Acquired Fund’s financial condition, assets, liabilities or business, other than changes occurring in the ordinary course of business, or any incurrence by the Acquired Fund of indebtedness maturing more than one year from the date such indebtedness was incurred, except as otherwise disclosed to and accepted by the Acquiring Fund in writing. For the purposes of this subparagraph (j), a decline in net asset value per share of Acquired Fund Shares due to declines in market values of securities held by the Acquired Fund, the discharge of the Acquired Fund’s liabilities, or the redemption of the Acquired Fund’s shares by shareholders of the Acquired Fund shall not constitute a material adverse change.

(k) At the Effective Time, all Federal and other tax returns, dividend reporting forms, and other tax-related reports of the Acquired Fund required by law to have been filed by such date (including any extensions) shall have been filed and are or will be correct in all material respects, and all Federal and other taxes shown as due or required to be shown as due on said returns and reports shall have been paid or provision shall have been made for the payment thereof, and to the best of the knowledge of the Acquired Fund, no such return is currently under audit and no assessment has been asserted with respect to such returns.

(l) Except as set forth on Schedule 4.1(1), for each taxable year of the Acquired Fund’s operation (in the case of the taxable year that includes the Effective Time, for that portion of such taxable year ending with the Effective Time), the Acquired Fund has met (or is expected to meet) the requirements of Subchapter M of Chapter 1 of the Code for qualification as a regulated investment company, has been (or is expected to be) eligible to and has computed (or will compute) its Federal income tax under Section 852 of the Code, and will have distributed substantially all of its investment company taxable income and net capital gain (as defined in the Code) relating to the taxable year ended June 30, 2012.

(m) All issued and outstanding shares of the Acquired Fund are, and on the Closing Date will be, duly and validly issued and outstanding, fully paid and non-assessable by Keystone and have been offered and sold in every state and the District of Columbia in compliance with applicable registration requirements of the 1933 Act and state securities laws. All of the issued and outstanding shares of the Acquired Fund will, at the Effective Time, be held by the persons and in the amounts set forth in the records of the Transfer Agent, on behalf of the Acquired Fund, as provided in paragraph 3.3. The Acquired Fund does not have outstanding any options, warrants or other rights to subscribe for or purchase any of the shares of the Acquired Fund, nor is there outstanding any security convertible into any of the Acquired Fund’s shares.

(n) The execution, delivery and performance of this Agreement will have been duly authorized prior to the Effective Time by all necessary action, if any, on the part of the Trustees of Keystone, on behalf of the Acquired Fund, and, subject to the approval of the shareholders of the Acquired Fund, this Agreement will constitute a valid and binding obligation of Keystone on behalf of the Acquired Fund, enforceable in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization, moratorium and other laws relating to or affecting creditors’ rights and to general equity principles.

(o) The information to be furnished by the Acquired Fund for use in registration statements, proxy materials and other documents filed or to be filed with any Federal, state or local regulatory authority (including the Financial Industry Regulatory Authority, Inc. (“FINRA”)), which may be necessary in connection with the transactions contemplated hereby, shall be accurate and complete in all material respects and shall comply in all material respects with Federal securities and other laws and regulations thereunder applicable thereto.

(p) The Proxy Statement (as defined in paragraph 5.6), insofar as it relates to the Acquired Fund, will, from the effective date of the Proxy Statement through the date of the meeting of the Acquired Fund Shareholders contemplated therein and at the Effective Time (i) not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which such statements were made, not materially misleading, and (ii) comply in all material respects with the provisions of the 1933 Act, the 1934 Act, and the 1940 Act and the rules and regulations thereunder; provided, however, that the representations and warranties of this subparagraph (p) shall not apply to statements in or omissions from the Proxy Statement made in reliance upon and in conformity with information that was furnished by the Acquiring Fund for use therein.

(q) For each year of its operation since inception and following an initial two-year term, the Acquired Fund’s investment advisory agreement with Cornerstone has been properly approved by the Board of Trustees of Keystone pursuant to Section 15(c) of the 1940 Act.

4.2. Representations and Warranties of MainStay Funds. Except as has been fully disclosed to the Acquired Fund in a written instrument executed by an officer of MainStay Funds, MainStay Funds, on behalf of the Acquiring Fund, represents and warrants to Keystone, on behalf of the Acquired Fund, as follows:

(a) The Acquiring Fund is a duly established series of MainStay Funds Trust, which is a statutory trust duly organized, validly existing, and in good standing under the laws of the State of Delaware with power under its Declaration of Trust and By-Laws, each as amended from time to time, to own all of its properties and assets and to carry on its business as it is presently conducted.

(b) MainStay Funds is registered with the Commission as an open-end management investment company under the 1940 Act, and the registration of the Acquiring Fund Shares under the 1933 Act is in full force and effect, or is anticipated to be in full force and effect on the Closing Date.

(c) No consent, approval, authorization, or order of any court or governmental authority is required for the consummation by MainStay Funds on behalf of the Acquiring Fund of the transactions contemplated herein, except such as have been obtained under the 1933 Act, the 1934 Act and the 1940 Act and such as may be required under state securities laws.

(d) The current prospectus, statement of additional information, shareholder reports, marketing and other related materials of the Acquiring Fund conforms in all material respects to the applicable requirements of the 1933 Act and the 1940 Act and the rules and regulations of the Commission thereunder and does not include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not materially misleading; provided, however, that the representations and warranties of this subparagraph (d) shall not apply to statements in or omissions from the materials described in this subparagraph (d) made in reliance upon and in conformity with information that was furnished by the Acquired Fund or Cornerstone for use therein.

(e) At the Effective Time, MainStay Funds, on behalf of the Acquiring Fund, will have good and marketable title to the Acquiring Fund’s assets, free of any liens or other encumbrances.

(f) MainStay Funds, on behalf of the Acquiring Fund, is not engaged currently, and the execution, delivery and performance of this Agreement will not result, in (i) a violation of Delaware law or a material violation of its Declaration of Trust and By-Laws or of any agreement, indenture, instrument, contract, lease or other undertaking to which MainStay Funds, on behalf of the Acquiring Fund, is a party or by which it is bound, or (ii) the acceleration of any obligation, or the imposition of any penalty, under any agreement, indenture, instrument, contract, lease, judgment or decree to which MainStay Funds, on behalf of the Acquiring Fund, is a party or by which it is bound.

(g) Except as otherwise disclosed to and accepted by Keystone, on behalf of the Acquired Fund, in writing, no litigation or administrative proceeding or investigation of or before any court or governmental body is presently pending or, to MainStay Funds’ knowledge, threatened against the Acquiring Fund or any of its properties or assets that, if adversely determined, would materially and adversely affect the Acquiring Fund’s financial condition or the conduct of its business. MainStay Funds, on behalf of the Acquiring Fund, knows of no facts which might form the basis for the institution of such proceedings and is not a party to or subject

to the provisions of any order, decree or judgment of any court or governmental body that materially and adversely affects the Acquiring Fund’s business or its ability to consummate the transactions herein contemplated.

(h) At the Effective Time, the Acquiring Fund will have no assets and no liabilities. The Acquiring Fund has not commenced operations and will not commence operations until after the Effective time.

(i) The Acquiring Fund (i) will elect to be taxed as a regulated investment company under Subchapter M of the Code for its taxable year that includes the Effective Time, and intends to qualify for such treatment in subsequent taxable years, (ii) will be eligible to compute its U.S. federal income tax under Section 852 of the Code for the taxable year that includes the Effective Time and (iii) will be treated as a separate corporation for U.S. federal income tax purposes pursuant to Section 851(g) of the Code for the taxable year that includes the Effective Time.

(j) The execution, delivery and performance of this Agreement will have been duly authorized prior to the Effective Time by all necessary action, if any, on the part of the Trustees of MainStay Funds, on behalf of the Acquiring Fund, and this Agreement will constitute a valid and binding obligation of the Acquiring Fund, enforceable in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization, moratorium and other laws relating to or affecting creditors’ rights and to general equity principles.

(k) The Acquiring Fund Shares to be issued and delivered to the Acquired Fund, for the account of the Acquired Fund Shareholders, pursuant to the terms of this Agreement, will at the Effective Time have been duly authorized and, when so issued and delivered, will be duly and validly issued Acquiring Fund Shares, will be fully paid and non-assessable by MainStay Funds, and will have been issued in every jurisdiction in compliance in all material respects with applicable registration requirements and applicable securities laws. The Acquiring Fund does not have outstanding any options, warrants or other rights to subscribe for or purchase any of the shares of the Acquiring Fund, nor is there outstanding any security convertible into any of the Acquiring Fund’s shares.

(l) The information to be furnished by the Acquiring Fund for use in the registration statements, proxy materials and other documents filed or to be filed with any Federal, state or local regulatory authority (including FINRA) that may be necessary in connection with the transactions contemplated hereby shall be accurate and complete in all material respects and shall comply in all material respects with Federal securities and other laws and regulations applicable thereto.

(m) The Proxy Statement (as defined in paragraph 5.6), insofar as it relates to the Acquiring Fund and the Acquiring Fund Shares, will, from the effective date of the Registration Statement through the date of the meeting of shareholders of the Acquired Fund contemplated therein and at the Effective Time (i) not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which such statements were made, not materially misleading, and (ii) comply in all material respects with the provisions of the 1933

Act, the 1934 Act, and the 1940 Act and the rules and regulations thereunder; provided, however, that the representations and warranties of this subparagraph (n) shall not apply to statements in or omissions from the Proxy Statement made in reliance upon and in conformity with information that was furnished by the Acquired Fund for use therein.

(n) The Acquiring Fund’s investment advisory agreement with New York Life Investments, and the subadvisory agreement between New York Life Investments and Cornerstone Capital Management LLC, have been properly approved by the Board of Trustees of the MainStay Funds pursuant to Section 15(c) of the 1940 Act.

4.3. Representation and Warranty of New York Life Investments. New York Life Investments represents and warrants to Keystone, on behalf of the Acquired Fund, and MainStay Funds, on behalf of the Acquiring Fund, that the execution, delivery and performance of this Agreement will have been duly authorized prior to the Effective Time by all necessary action, if any, on the part of New York Life Investments, and this Agreement will constitute a valid and binding obligation of New York Life Investments, enforceable in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization, moratorium and other laws relating to or affecting creditors’ rights and to general equity principles.

4.4. Representation and Warranty of Cornerstone and Cornerstone LLC. Each of Cornerstone and Cornerstone LLC represents and warrants to Keystone, on behalf of the Acquired Fund, and MainStay Funds, on behalf of the Acquiring Fund, that the execution, delivery and performance of this Agreement will have been duly authorized prior to the Effective Time by all necessary action, if any, on the part of each of Cornerstone and Cornerstone LLC, and this Agreement will constitute a valid and binding obligation of each of Cornerstone LLC and Cornerstone, as applicable, enforceable in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization, moratorium and other laws relating to or affecting creditors’ rights and to general equity principles.

ARTICLE V

COVENANTS AND AGREEMENTS

5.1. Conduct of Business. The Acquiring Fund and the Acquired Fund each will operate its business in the ordinary course consistent with past practice between the date hereof and the Effective Time, it being understood that such ordinary course of business with respect to the Acquired Fund will include the declaration and payment of customary dividends and distributions, and any other distribution that may be advisable.

5.2. Meeting of Shareholders. Keystone will call a meeting of the shareholders of the Acquired Fund to consider and act upon this Agreement and to take all other action necessary to obtain approval of the transactions contemplated herein.

5.3. No Distribution of Acquiring Fund Shares. The Acquired Fund covenants that the Acquiring Fund Shares to be issued hereunder are not being acquired for the purpose of making any distribution thereof, other than in accordance with the terms of this Agreement.

5.4. Information. The Acquired Fund will assist the Acquiring Fund in obtaining such information as the Acquiring Fund reasonably requests concerning the beneficial ownership of the Acquired Fund Shares.

5.5. Other Necessary Action. Subject to the provisions of this Agreement, the Acquiring Fund and the Acquired Fund will each take, or cause to be taken, all action, and do or cause to be done all things, reasonably necessary, proper or advisable to consummate and make effective the transactions contemplated by this Agreement.

5.6. Proxy Statement. The Acquired Fund will provide the Acquiring Fund with information regarding the Acquired Fund, and the Acquiring Fund will provide the Acquired Fund with information regarding the Acquiring Fund, reasonably necessary for the preparation of the Proxy Statement to be included in a Schedule 14A Proxy Statement (the “Proxy Statement”), in compliance with the 1933 Act, the 1934 Act and the 1940 Act, in connection with the meeting of the shareholders of the Acquired Fund to consider approval of this Agreement and the transactions contemplated herein. To the extent required by the Commission or otherwise determined to be appropriate in the reasonable business judgment of MainStay Funds, on behalf of the Acquiring Fund, the term “Proxy Statement,” as used herein, shall include a proxy statement/prospectus filed on Form N-14 in lieu of a Schedule 14A Proxy Statement and in compliance with the 1933 Act, the 1934 Act and the 1940 Act.

5.7. Liquidating Distribution. As soon as is reasonably practicable after the Closing, the Acquired Fund will make a liquidating distribution to its respective shareholders consisting of the Acquiring Fund Shares received at the Closing.

5.8. Best Efforts. The Acquiring Fund and the Acquired Fund shall each use their reasonable best efforts to fulfill or obtain the fulfillment of the conditions precedent set forth in Article VI to effect the transactions contemplated by this Agreement as promptly as practicable.

5.9. Other Instruments. Keystone, on behalf of the Acquired Fund, and MainStay Funds, on behalf of the Acquiring Fund, each covenants that it will, from time to time, as and when reasonably requested by the other party, execute and deliver or cause to be executed and delivered all such assignments and other instruments, and will take or cause to be taken such further action as the other party may reasonably deem necessary or desirable in order to vest in and confirm (a) Keystone’s, on behalf of the Acquired Fund, title to and possession of the Acquiring Fund Shares to be delivered hereunder, and (b) MainStay Funds’, on behalf of the Acquiring Fund, title to and possession of all the Assets and otherwise to carry out the intent and purpose of this Agreement.

5.10. Regulatory Approvals. The Acquiring Fund will use all reasonable efforts to obtain the approvals and authorizations required by the 1933 Act, the 1940 Act and such of the state blue sky or securities laws as may be necessary in order to continue its operations after the Effective Time.

5.11. Compliance with Section 15(f). MainStay Funds agrees that, for the minimum time periods specified in Section 15(f) of the 1940 Act it shall take (or refrain from taking, as the case may be) such actions as are necessary to ensure that: (a) at least seventy-five percent (75%)

of the trustees of the MainStay Funds shall not be “interested persons” (as that term is defined in the 0000 Xxx) of the Acquiring Fund’s investment adviser or the Acquired Fund’s investment adviser; (b) no “unfair burden” (as that term is defined in Section 15(f)(2)(B) of the 0000 Xxx) shall be imposed on the Acquired Fund; and (c) each vacancy among the trustees of the MainStay Funds which must be filled by a person who is neither an interested person of the Acquiring Fund’s investment adviser nor of the Acquired Fund’s investment adviser so as to comply with Section 15(f) of the 1940 Act, as if such Section were applicable, shall be filled in the manner specified by Section 16(b) of the 1940 Act.

ARTICLE VI

CONDITIONS PRECEDENT

6.1. Conditions Precedent to Obligations of Acquired Fund. The obligations of Keystone, on behalf of the Acquired Fund, to consummate the transactions provided for herein shall be subject, at Keystone’s election, to the following conditions:

(a) All representations and warranties of MainStay Funds, on behalf of the Acquiring Fund, contained in this Agreement shall be true and correct in all material respects as of the date hereof and, except as they may be affected by the transactions contemplated by this Agreement, as of the Effective Time, with the same force and effect as if made on and as of the Effective Time.

(b) MainStay Funds, on behalf of the Acquiring Fund, shall have delivered to the Acquired Fund a certificate executed in the name of the Acquiring Fund by its President or Vice President and its Treasurer or Assistant Treasurer, in a form reasonably satisfactory to Keystone, and dated as of the Effective Time, to the effect that the representations and warranties of MainStay Funds, on behalf of the Acquiring Fund, made in this Agreement are true and correct at and as of the Effective Time, except as they may be affected by the transactions contemplated by this Agreement, and as to such other matters as Keystone shall reasonably request.

(c) MainStay Funds, on behalf of the Acquiring Fund, shall have performed all of the covenants and complied with all of the provisions required by this Agreement to be performed or complied with by MainStay Funds, on behalf of the Acquiring Fund, on or before the Effective Time.

(d) The Acquired Fund and the Acquiring Fund shall have agreed on the number of full and fractional Acquiring Fund Shares to be issued in connection with the Reorganization after such number has been calculated in accordance with paragraph 2.3.

(e) Keystone shall have received on the Closing Date the opinion of Dechert LLP, counsel to the MainStay Funds, dated as of the Closing Date, covering the following points:

(1) MainStay Funds is a statutory trust duly organized, validly existing and in good standing under the laws of the State of Delaware and has the trust power to

own all of the Acquiring Fund’s properties and assets and to carry on its business, including that of the Acquiring Fund, as a registered investment company;

(2) The Agreement has been duly authorized by MainStay Funds, on behalf of the Acquiring Fund and, assuming due authorization, execution and delivery of the Agreement by Keystone, is a valid and binding obligation of MainStay Funds on behalf of the Acquiring Fund enforceable against the MainStay Funds in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization, moratorium and other laws relating to or affecting creditors’ rights generally and to general equity principles;

(3) The Acquiring Fund shares to be issued to the Acquired Fund Shareholders as provided by this Agreement are duly authorized, upon such delivery will be validly issued and outstanding, and will be fully paid and non-assessable by MainStay Funds and no shareholder of an Acquiring Fund has any preemptive rights to subscription or purchase in respect thereof;

(4) The execution and delivery of the Agreement did not, and the consummation of the transactions contemplated hereby will not, result in a material violation of MainStay Funds’ Declaration of Trust or By-Laws or any provision of any agreement (known to such counsel) to which MainStay Funds is a party or by which it is bound or, to the knowledge of such counsel, result in the acceleration of any obligation or the imposition of any penalty under any agreement, judgment or decree to which the MainStay Funds is a party or by which it is bound;

(5) To the knowledge of such counsel, no consent, approval, authorization or order of any court or governmental authority of the United States or the State of Delaware is required to be obtained by MainStay Funds in order to consummate the transactions contemplated herein, except such as have been obtained under the 1933 Act, the 1934 Act and the 1940 Act, and such as may be required under state securities laws;

(6) MainStay Funds is a registered investment company classified as a management company of the open-end type with respect to each series of shares it offers, including those of the Acquiring Fund, under the 1940 Act, and its registration with the Commission as an investment company under the 1940 Act is in full force and effect; and

(7) To the knowledge of such counsel, and except as otherwise disclosed to Keystone pursuant to paragraph 4.2(g) of this Agreement, no litigation or administrative proceeding or investigation of or before any court or governmental body is presently pending or threatened as to MainStay Funds or the Acquiring Fund and neither MainStay Funds nor the Acquiring Fund is a party to or subject to the provisions of any order, decree or judgment of any court or governmental body which materially and adversely affects its business

6.2. Conditions Precedent to Obligations of Acquiring Fund. The obligations of MainStay Funds, on behalf of the Acquiring Fund, to complete the transactions provided for herein shall be subject, at MainStay Funds’ election, to the following conditions:

(a) All representations and warranties of Keystone, on behalf of the Acquired Fund, contained in this Agreement shall be true and correct in all material respects as of the date hereof and, except as they may be affected by the transactions contemplated by this Agreement, as of the Effective Time, with the same force and effect as if made on and as of the Effective Time.

(b) Keystone shall have delivered to the Acquiring Fund a statement of the Acquired Fund’s Assets and Liabilities, as of the Effective Time, that is prepared in accordance with GAAP and certified by the Treasurer of Keystone.

(c) Keystone, on behalf of the Acquired Fund, shall have delivered to the Acquiring Fund a certificate executed in the name of the Acquired Fund by its President or Vice President and its Treasurer or Assistant Treasurer, in a form reasonably satisfactory to the Acquiring Fund and dated as of the Effective Time, to the effect that the representations and warranties of Keystone, on behalf of the Acquired Fund, made in this Agreement are true and correct at and as of the Effective Time, except as they may be affected by the transactions contemplated by this Agreement, and as to such other matters as MainStay Funds shall reasonably request.

(d) Keystone, on behalf of the Acquired Fund, shall have performed all of the covenants and complied with all of the provisions required by this Agreement to be performed or complied with by Keystone, on behalf of the Acquired Fund, on or before the Effective Time.

(e) The Acquired Fund and the Acquiring Fund shall have agreed on the number of full and fractional Acquiring Fund Shares to be issued in connection with the Reorganization after such number has been calculated in accordance with paragraph 2.3.

(f) The MainStay Funds shall have received on the Closing Date the opinion of Faegre Xxxxx Xxxxxxx LLP, counsel to Keystone, covering the following points:

(1) Keystone is a statutory trust duly organized, validly existing and in good standing under the laws of the State of Delaware and has the power to own all of Acquired Fund’s properties and assets, and to carry on its business, including that of the Acquired Fund, as a registered investment company;

(2) The Agreement has been duly authorized by Keystone, on behalf of the Acquired Fund, and, assuming due authorization, execution and delivery of the Agreement by the MainStay Funds, is a valid and binding obligation of Keystone, on behalf of the Acquired Fund, enforceable against Keystone in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization, moratorium and other laws relating to or affecting creditors’ rights generally and to general equity principles;

(3) The execution and delivery of the Agreement did not, and the consummation of the transactions contemplated hereby will not, result in a material violation of Keystone’s Declaration of Trust or By-Laws or any provision of any agreement (known to such counsel) to which Keystone is a party or by which it is bound or, to the knowledge of such counsel, result in the acceleration of any obligation or the imposition of any penalty under any agreement, judgment or decree to which Keystone is a party or by which it is bound;

(4) To the knowledge of such counsel, no consent, approval, authorization or order of any court or governmental authority of the United States or the State of Delaware is required to be obtained by Keystone in order to consummate the transactions contemplated herein, except such as have been obtained under the 1933 Act, the 1934 Act and the 1940 Act, and such as may be required under state securities laws;

(5) Keystone is a registered investment company classified as a management company of the open-end type with respect to each series of shares it offers, including those of the Acquired Fund, under the 1940 Act, and its registration with the Commission as an investment company under the 1940 Act is in full force and effect;

(6) To the knowledge of such counsel, and except as otherwise disclosed to the MainStay Funds pursuant to paragraph 4.1(h) of this Agreement, no litigation or administrative proceeding or investigation of or before any court or governmental body is presently pending or threatened as to Keystone or the Acquired Fund and neither Keystone nor the Acquired Fund is a party to or subject to the provisions of any order, decree or judgment of any court or governmental body which materially and adversely affects its business.

6.3. Other Conditions Precedent. If any of the conditions set forth in this paragraph 6.3 have not been satisfied on or before the Effective Time, Keystone, on behalf of the Acquired Fund, or MainStay Funds, on behalf of the Acquiring Fund, shall, at its option, not be required to consummate the transactions contemplated by this Agreement.

(a) The Agreement and the transactions contemplated herein shall have been approved by the requisite vote of the holders of the outstanding shares of the Acquired Fund in accordance with the provisions of Keystone’s Declaration of Trust and By-Laws, applicable Delaware law and the 1940 Act and the regulations thereunder, and certified copies of the resolutions evidencing such approval shall have been delivered to the Acquiring Fund. Notwithstanding anything herein to the contrary, Keystone and MainStay Funds, on behalf of either the Acquired Fund or the Acquiring Fund, respectively, may not waive the conditions set forth in this paragraph 6.3(a).

(b) At the Effective Time, no action, suit or other proceeding shall be pending or, to the knowledge of Keystone or MainStay Funds, threatened before any court or governmental agency in which it is sought to restrain or prohibit, or obtain damages or other relief in connection with, this Agreement or the transactions contemplated herein.

(c) All consents of other parties and all other consents, orders and permits of Federal, state and local regulatory authorities deemed necessary by Keystone and MainStay Funds to permit consummation, in all material respects, of the transactions contemplated hereby shall have been obtained, except where failure to obtain any such consent, order or permit would not involve a risk of a material adverse effect on the assets or properties of the Acquiring Fund or the Acquired Fund, provided that either party hereto may for itself waive any of such conditions.

(d) The Proxy Statement shall have become effective under the 1933 Act and no stop orders suspending the effectiveness thereof shall have been issued and, to the best knowledge of the parties hereto, no investigation or proceeding for that purpose shall have been instituted or be pending, threatened or contemplated under the 1933 Act.

(e) Keystone and MainStay Funds shall have received an opinion of Faegre Xxxxx Xxxxxxx LLP, in a form acceptable to Dechert LLP, as to federal income tax matters (the “Tax Opinion”) substantially to the effect that, based on the facts, representations, assumptions stated therein and conditioned on consummation of the Reorganization in accordance with this Agreement, for federal income tax purposes:

(1) The transfer by the Acquired Fund of all of its assets to the Acquiring Fund in exchange solely for Acquiring Fund Shares and the assumption by the Acquiring Fund of all the liabilities of the Acquired Fund, and the distribution of such shares to the Acquired Fund Shareholders, as provided in this Agreement, will constitute a reorganization under Section 368(a)(1)(F) of the Code and the Acquired Fund and the Acquiring Fund will each be “a party to a reorganization” within the meaning of Section 368(b) of the Code.

(2) No gain or loss will be recognized by the Acquired Fund as a result of such transactions.

(3) No gain or loss will be recognized by the Acquiring Fund as a result of such transactions.

(4) No gain or loss will be recognized by the shareholders of the Acquired Fund upon the distribution to them by the Acquired Fund of the Acquiring Fund Shares in exchange for their shares of the Acquired Fund.

(5) The basis of the Acquiring Fund Shares received by each shareholder of the Acquired Fund will be the same as the basis of the shareholder’s Acquired Fund shares exchanged therefor.

(6) The basis of the Acquired Fund’s Assets received by the Acquiring Fund will be the same as the basis of such Assets in the hands of the Acquired Fund immediately prior to the transactions.

(7) The shareholder’s holding period for the Acquiring Fund Shares will be determined by including the period for which the shareholder held the shares of the Acquired Fund exchanged therefor, provided that the shareholder held such shares of the Acquired Fund as a capital asset at the time of the exchange.

(8) The holding period of the Acquiring Fund with respect to the Acquired Fund’s Assets will include the period for which the Acquired Fund’s Assets were held by the Acquired Fund.

The delivery of such opinion is conditioned upon receipt by Faegre Xxxxx Xxxxxxx LLP of representations it shall request of Keystone and the MainStay Funds on behalf of the Acquired Fund and the Acquiring Fund, respectively. Notwithstanding anything herein to the contrary, neither party may waive the condition set forth in this paragraph 6.3(e).

(f) U.S. Bank shall have delivered such certificates or other documents as set forth in paragraph 3.2.

(g) The Transfer Agent shall have delivered to MainStay Funds a certificate of its authorized officer as set forth in paragraph 3.3.

(h) The Acquiring Fund shall have issued and delivered to the Secretary of the Acquired Fund the confirmation as set forth in paragraph 3.3.

(i) Each party shall have delivered to the other such bills of sale, checks, assignments, receipts or other documents as reasonably requested by such other party or its counsel.

ARTICLE VII

LIABILITY STANDARD

7.1. Liability of Keystone. MainStay Funds understands and agrees that the obligations of Keystone on behalf of the Acquired Fund under this Agreement shall not be binding upon any trustee, shareholder, nominee, officer, agent or employee of Keystone on behalf of Keystone personally, but bind only Keystone on behalf of the Acquired Fund and the Acquired Fund’s property. Moreover, no series of Keystone other than the Acquired Fund shall be responsible for the obligations of Keystone hereunder, and all persons shall look only to the assets of the Acquired Fund to satisfy the obligations of the Acquired Fund hereunder. MainStay Funds represents that it has notice of the provisions of the Declaration of Trust of Keystone disclaiming shareholder and trustee liability for acts or obligations of the Acquired Fund.

7.2. Liability of MainStay Funds. Keystone understands and agrees that the obligations of MainStay Funds on behalf of the Acquiring Fund under this Agreement shall not be binding upon any trustee, shareholder, nominee, officer, agent or employee of MainStay Funds on behalf of MainStay Funds personally, but bind only MainStay Funds on behalf of the Acquiring Fund and the Acquiring Fund’s property. Moreover, no series of MainStay Funds other than the Acquiring Fund shall be responsible for the obligations of MainStay Funds hereunder, and all persons shall look only to the assets of the Acquiring Fund to satisfy the obligations of the Acquiring Fund hereunder. Keystone represents that it has notice of the provisions of the Declaration of Trust of MainStay Funds disclaiming shareholder and trustee liability for acts or obligations of the Acquiring Fund.

ARTICLE VIII

BROKERAGE FEES AND EXPENSES

8.1. No Broker or Finder Fees. The Acquiring Fund and the Acquired Fund, represent and warrant to each other that there are no brokers or finders entitled to receive any payments in connection with the transactions provided for herein.

8.2. Expenses of Reorganization. The expenses relating to the proposed Reorganization will be borne by New York Life Investments, Cornerstone and Cornerstone LLC, as agreed between them. The costs of the Reorganization shall include, but not be limited to, costs associated with obtaining any necessary order of exemption from the 1940 Act, preparation, printing and distribution of the Proxy Statement, legal fees and accounting fees with respect to the Reorganization and the Proxy Statement, expenses of holding shareholder meetings and all necessary taxes in connection with the delivery of the Assets, including all applicable federal and state stock transfer stamps. Notwithstanding any of the foregoing, expenses will in any event be paid by the party directly incurring such expenses if and to the extent that the payment by another person of such expenses would result in the disqualification of such party as a “regulated investment company” within the meaning of Section 851 of the Code.

ARTICLE IX

AMENDMENTS AND TERMINATION

9.1. Amendments. This Agreement may be amended, modified or supplemented in such manner as may be deemed necessary or advisable by the authorized officers of Keystone or MainStay Funds, on behalf of either the Acquired Fund or the Acquiring Fund, respectively; provided, however, that following the approval of this Agreement by the shareholders of the Acquired Fund pursuant to paragraph 6.3(a) of this Agreement, no such amendment may have the effect of changing the provisions for determining the number of Acquiring Fund Shares to be issued to the Acquired Fund Shareholders under this Agreement to the detriment of such shareholders without their further approval.

9.2. Termination. This Agreement may be terminated and the transactions contemplated hereby may be abandoned by resolution of the Board of Trustees of Keystone or the Board of Trustees of MainStay Funds, on behalf of the Acquired Fund or the Acquiring Fund, respectively, at any time prior to the Effective Time, if circumstances should develop that, in the opinion of such Board of Trustees, make proceeding with the Agreement inadvisable.

ARTICLE X

NOTICES

Any notice, report, statement or demand required or permitted by any provisions of this Agreement shall be in writing and shall be given by facsimile, electronic delivery (i.e., e-mail) personal service or prepaid or certified mail addressed as follows:

If to Keystone:

Keystone Mutual Funds

c/o Cornerstone Capital Management, Inc.

0000 Xxxxxxxxx Xxxxx, Xxxxx 00

Xxxxx, XX 00000

Attention: Xxxxx X. Kix

Telephone: (000) 000-0000

Fax: (000) 000-0000

Email: xxx@xxxxxxxxxxxxxxxxxx.xxx

With copies (which shall not constitute notice) to:

Faegre Xxxxx Xxxxxxx LLP

2200 Xxxxx Fargo Center

00 Xxxxx Xxxxxxx Xxxxxx

Xxxxxxxxxxx, XX 00000

Attention: Xxxxxx X. Xxxxx, Esq.

Telephone: (000) 000-0000

Fax: (000) 000-0000

Email: xxxxxx.xxxxx@XxxxxxXX.xxx

If to MainStay Funds:

MainStay Funds Trust c/o New York Life Investment Management LLC

000 Xxxxxxxxxx Xxxxxx

Xxxxxxxxxx, XX 00000

Attention: J. Xxxxx Xxx, Esq.

Telephone No.: (000) 000-0000

Facsimile No.: (000) 000-0000

Email: xxxxx_xxx@xxxxx.xxx

With a copy (which shall not constitute notice) to:

Dechert LLP

0000 X Xxxxxx, X.X.

Xxxxxxxxxx, X.X. 00000

Attn: Sander M. Bieber, Esq.

Telephone No.: (000) 000-0000

Facsimile No.: (000) 000-0000

Email: xxxxxx.xxxxxx@xxxxxxx.xxx

ARTICLE XI
MISCELLANEOUS

11.1. Entire Agreement. MainStay Funds and Keystone agree that they have not made any representation, warranty or covenant, on behalf of either the Acquiring Fund or the Acquired Fund, respectively, not set forth herein, and that this Agreement constitutes the entire agreement between the parties.

11.2. Survival. The representations, warranties and covenants contained in this Agreement or in any document delivered pursuant hereto or in connection herewith shall survive the Closing.

11.3. Headings. The Article and paragraph headings contained in this Agreement are for reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement.

11.4. Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of New York without regard to its principles of conflicts of laws.

11.5. Assignment. This Agreement shall bind and inure to the benefit of the parties hereto and their respective successors and assigns, but no assignment or transfer hereof or of any rights or obligations hereunder shall be made by any party without the written consent of the other party. Nothing herein expressed or implied is intended or shall be construed to confer upon or give any person, firm or corporation, other than the parties hereto and their respective successors and assigns, any rights or remedies under or by reason of this Agreement.

11.6. Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed an original, but all taken together shall constitute one agreement.

[signature page follows]

IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to be executed as of the 11^th day of January, 2013.

MAINSTAY FUNDS TRUST on behalf of its series, MainStay Cornerstone Growth Fund	KEYSTONE MUTUAL FUNDS on behalf of its series, Keystone Large Cap Growth Fund
By: /s/ Xxxxxxx X. Xxxxxx	By: /s/ Xxxxxx X. Xxxxx
Name: Xxxxxxx X. Xxxxxx	Name: Xxxxxx X. Xxxxx
Title: President	Title: President
Solely for purposes of paragraphs 4.3 and 8.2 NEW YORK LIFE INVESTMENT MANAGEMENT LLC	Solely for purposes of paragraphs 4.4 and 8.2 CORNERSTONE CAPITAL MANAGEMENT, INC. CORNERSTONE CAPITAL MANAGEMENT LLC
By: /s/ Xxxxxxx X. Xxxxxx	By: /s/ Xxxxxx X. Xxxxx
Name: Xxxxxxx X. Xxxxxx	Name: Xxxxxx X. Xxxxx
Title: Senior Managing Director	Title: Chief Executive Officer

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AGREEMENT AND PLAN OF REORGANIZATION

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