MASCO CORP DE

APPENDIX B — AMENDMENTS TO THE COMPANY’S CERTIFICATE OF INCORPORATION TO AMEND THE BUSINESS COMBINATION RESTRICTIONS IN ARTICLE THIRTEENTH OF THE CERTIFICATE TO MIRROR THOSE UNDER SECTION 203 OF THE GENERAL CORPORATION LAW OF THE STATE OF DELAWARE BUT TO REDUCE THE VOTE REQUIRED FOR STOCKHOLDER APPROVAL OF A BUSINESS COMBINATION TO A MAJORITY VOTE INSTEAD OF THE 66 2/3% VOTE REQUIRED BY SECTION 203.

THIRTEENTH:1. Opt Out. The Corporation hereby expressly elects that it shall not be governed by, or otherwise subject to, Section 203 of the Delaware General Corporation Law.

2. Applicable Restrictions to Business Combinations. Notwithstanding the provisions of Section 1 of this Article THIRTEENTH, the Corporation shall not engage in any business combination (as defined below), at any point in time at which the Corporation has a class of voting stock that is listed on a national securities exchange or held of record by more than 2,000 stockholders (unless any of the forgoing result from action taken, directly or indirectly, by an interested stockholder (as defined below) or from a transaction in which a person becomes an interested stockholder), with any interested stockholder (as defined below) for a period of three years following the time that such stockholder became an interested stockholder, unless:

(a) prior to such time, the Board of Directors approved either the business combination or the transaction which resulted in the stockholder becoming an interested stockholder,

(b) upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least eighty-five percent (85%) of the voting stock (as defined below) of the Corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding (but not the outstanding voting stock owned by the interested stockholder) those shares owned by (i) persons who are directors and also officers and (ii) employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer, or

(c) at or subsequent to such time, the business combination is approved by the Board of Directors and authorized at an annual or special meeting of stockholders by the affirmative vote of the holders of at a majority of the outstanding voting stock of the Corporation which is not owned by the interested stockholder.

3. Certain Definitions. For purposes of this Article THIRTEENTH:

(a) “affiliate” means a person that directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is under common control with, another person.

(b) “associate,” when used to indicate a relationship with any person, means: (i) any corporation, partnership, unincorporated association or other entity of which such person is a director, officer or partner or is, directly or indirectly, the owner of twenty percent (20%) or more of any class of voting stock; (ii) any trust or other estate in which such person has at least a twenty percent (20%) beneficial ownership or as to which such person serves as trustee or in a similar fiduciary capacity; and (iii) any relative or spouse of such person, or any relative of such spouse, who has the same residence as such person.

(c) “business combination,” when used in reference to the Corporation and any interested stockholder of the Corporation, means:

(i) any merger or consolidation of the Corporation or any direct or indirect majority-owned subsidiary of the Corporation (A) with the interested stockholder, or (B) with any other corporation, partnership, unincorporated association or other entity if the merger or consolidation is caused by the interested stockholder and as a result of such merger or consolidation this Article THIRTEENTH is not applicable to the surviving entity;

(ii) any sale, lease, exchange, mortgage, pledge, transfer or other disposition (in one transaction or a series of transactions), except proportionately as a stockholder of the Corporation, to or with the interested stockholder, whether as part of a dissolution or otherwise, of assets of the Corporation or of any direct or indirect majority-owned subsidiary of the Corporation which assets have an aggregate market value equal to ten percent (10%) or more of either the aggregate market value of all the assets of the Corporation determined on a consolidated basis or the aggregate market value of all the outstanding stock of the Corporation;

(iii) any transaction which results in the issuance or transfer by the Corporation or by any direct or indirect majority-owned subsidiary of the Corporation of any stock of the Corporation or of such subsidiary to the interested stockholder, except: (A) pursuant to the exercise, exchange or conversion of securities exercisable for, exchangeable for or convertible into stock of the Corporation or any such subsidiary which securities were outstanding prior to the time that the interested stockholder became such; (B) pursuant to a merger under Section 251(g) of the Delaware General Corporation Law; (C) pursuant to a dividend or distribution paid or made, or the exercise, exchange or conversion of securities exercisable for, exchangeable for or convertible into stock of the Corporation or any such subsidiary which security is distributed, pro rata, to all holders of a class or series of stock of the Corporation subsequent to the time the interested stockholder became such; (D) pursuant to an exchange offer by the Corporation to purchase stock made on the same terms to all holders of said stock; or (E) any issuance or transfer of stock by the Corporation; provided, however, that in no case under items (C) through (E) of this subsection (iii) shall there be an increase in the interested stockholder’s proportionate share of the stock of any class or series of the Corporation or of the voting stock of the Corporation;

(iv) any transaction involving the Corporation or any direct or indirect majority-owned subsidiary of the Corporation which has the effect, directly or indirectly, of increasing the proportionate share of the stock of any class or series, or securities convertible into the stock of any class or series, of the Corporation or of any such subsidiary which is owned by the interested stockholder, except as a result of immaterial changes due to fractional share adjustments or as a result of any purchase or redemption of any shares of stock not caused, directly or indirectly, by the interested stockholder; or

(v) any receipt by the interested stockholder of the benefit, directly or indirectly (except proportionately as a stockholder of the Corporation), of any loans, advances, guarantees, pledges, or other financial benefits (other than those expressly permitted in subsections (i) through (iv) above) provided by or through the Corporation or any direct or indirect majority-owned subsidiary.

(d) “control,” including the terms “controlling,” “controlled by” and “under common control with,” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a person, whether through the ownership of voting stock, by contract, or otherwise. A person who is the owner of twenty percent (20%) or more of the outstanding voting stock of any corporation, partnership, unincorporated association or other entity shall be presumed to have control of such entity, in the absence of proof by a preponderance of the evidence to the contrary. Notwithstanding the foregoing, a presumption of control shall not apply where such person holds voting stock, in good faith and not for the purpose of circumventing this Article THIRTEENTH, as an agent, bank, broker, nominee, custodian or trustee for one or more owners who do not individually or as a group have control of such entity.

(e) “interested stockholder” means any person (other than the Corporation or any direct or indirect majority-owned subsidiary of the Corporation) that (i) is the owner of fifteen percent (15%) or more of the outstanding voting stock of the Corporation, or (ii) is an affiliate or associate of the Corporation and was the owner of fifteen percent (15%) or more of the outstanding voting stock of the Corporation at any time within the three-year period immediately prior to the date on which it is sought to be determined whether such person is an interested stockholder; and the affiliates and associates of such person; provided, however, that the term “interested stockholder” shall not include (A) a stockholder that becomes an interested stockholder inadvertently and (x) as soon as practicable divests itself of ownership of sufficient shares so that such stockholder ceases to be an interested stockholder and (y) would not, at any time within the three-year period immediately prior to a business combination between the Corporation and such stockholder, have been an interested stockholder but for the inadvertent acquisition of ownership or (B) any person whose ownership of shares in excess of the fifteen percent (15%) limitation set forth herein is the result of any action taken solely by the Corporation; provided, however, that such person specified in this clause (C) shall be an interested stockholder if thereafter such person acquires additional shares of voting stock of the Corporation, except as a result of further corporate action not caused, directly or indirectly, by such person. For the purpose of determining whether a person is an interested stockholder, the voting stock of the Corporation deemed to be outstanding shall include stock deemed to be owned by the person through application of the definition of “owner” below but shall not include any other unissued stock of the Corporation which may be issuable pursuant to any agreement, arrangement or understanding, or upon exercise of conversion rights, warrants or options, or otherwise.

(f) “owner,” including the terms “own” and “owned,” when used with respect to any stock, means a person that individually or with or through any of its affiliates or associates:

(i) beneficially owns such stock, directly or indirectly;

(ii) has (A) the right to acquire such stock (whether such right is exercisable immediately or only after the passage of time) pursuant to any agreement, arrangement or understanding, or upon the exercise of conversion rights, exchange rights, warrants or options, or otherwise; provided, however, that a person shall not be deemed the owner of stock tendered pursuant to a tender or exchange offer made by such person or any of such person’s affiliates or associates until such tendered stock is accepted for purchase or exchange; or (B) the right to vote such stock pursuant to any agreement, arrangement or understanding; provided, however, that a person shall not be deemed the owner of any stock because of such person’s right to vote such stock if the agreement, arrangement or understanding to vote such stock arises solely from a revocable proxy or consent given in response to a proxy or consent solicitation made to ten or more persons; or

(iii) has any agreement, arrangement or understanding for the purpose of acquiring, holding, voting (except voting pursuant to a revocable proxy or consent as described in clause (B) of subsection (ii) above), or disposing of such stock with any other person that beneficially owns, or whose affiliates or associates beneficially own, directly or indirectly, such stock.

(g) “person” means any individual, corporation, partnership, unincorporated association or other entity.

(h) “stock” means, with respect to any corporation, capital stock and, with respect to any other entity, any equity interest.

(i) “voting stock” means stock of any class or series entitled to vote generally in the election of directors and, with respect to any entity that is not a corporation, any equity interest entitled to vote generally in the election of the governing body of such entity. Every reference in this Article THIRTEENTH to a percentage or proportion of voting stock shall refer to such percentage or other proportion of the votes of such voting stock.

1. The affirmative vote of the holders of 95% of all shares of stock of the Corporation entitled to vote in elections of directors, considered for the purposes of this Article THIRTEENTH as one class, shall be required for the adoption or authorization of a business combination (as hereinafter defined) with any other entity (as hereinafter defined) if, as of the record date for the determination of stockholders entitled to notice thereof and to vote thereon, such other entity is the beneficial owner, directly or indirectly, of 30% or more of the outstanding shares of stock of the Corporation entitled to vote in elections of directors considered for the purposes of this Article THIRTEENTH as one class; provided that such 95% voting requirement shall not be applicable if:

(a) The cash, or fair market value of other consideration, to be received per share by common stockholders of the Corporation in such business combination bears the same or a greater percentage relationship to the market price of the Corporation’s common stock immediately prior to the announcement of such business combination as the highest per share price (including brokerage commissions and soliciting dealers’ fees) which such other entity has theretofore paid for any of the shares of the Corporation’s common stock already owned by it bears to the market price of the common stock of the Corporation immediately prior to the commencement of acquisition of the Corporation’s common stock by such other entity;

(b) The cash, or fair market value of other consideration, to be received per share by common stockholders of the Corporation in such business combination (i) is not less than the highest per share price (including brokerage commissions and soliciting dealers’ fees) paid by such other entity in acquiring any of its holdings of the Corporation’s common stock, and (ii) is not less than the earnings per share of common stock of the Corporation for the four full consecutive fiscal quarters immediately preceding the record date for solicitation of votes on such business combination, multiplied by the then price/earnings multiple (if any) of such other entity as customarily computed and reported in the financial community;

(c) After such other entity has acquired a 30% interest and prior to the consummation of such business combination: (i) such other entity shall have taken steps to ensure that the Corporation’s Board of Directors included at all times representation by continuing director(s) (as hereinafter defined) proportionate to the stockholdings of the Corporation’s public common stockholders not affiliated with such other entity (with a continuing director to occupy any resulting fractional board position); (ii) there shall have been no reduction in the rate of dividends payable on the Corporation’s common stock except as necessary to insure that a quarterly dividend payment does not exceed 5% of the net income of the Corporation for the four full consecutive fiscal quarters immediately preceding the declaration date of such dividend, or except as may have been approved by a unanimous vote of the directors; (iii) such other entity shall not have acquired any newly issued shares of stock, directly or indirectly, from the Corporation (except upon conversion of convertible securities acquired by it prior to obtaining a 30% interest or as a result of a pro rata stock dividend or stock split); and (iv) such other entity shall not have acquired any additional shares of the Corporation’s outstanding common stock or securities convertible into common stock except as a part of the transaction which results in such other entity acquiring its 30% interest;

(d) Such other entity shall not have (i) received the benefit, directly or indirectly (except proportionately as a stockholder) of any loans, advances, guarantees, pledges or other financial assis- tance or tax credits of or provided by the Corporation, or (ii) made any major change in the Corporation’s business or equity capital structure without the unanimous approval of the directors, in either case prior to the consummation of such business combination; and

(e) A proxy statement responsive to the requirements of the United States securities laws shall be mailed to all common stockholders of the Corporation for the purpose of soliciting stock- holder approval of such business combination and shall contain on its first page thereof, in a prominent place, any recommendations as to the advisability (or inadvisability) of the business combination which the continuing directors, or any of them, may choose to state and, if deemed advisable by a majority of the continuing directors, an opinion of a reputable investment banking firm as to the fairness (or not) of the terms of such business combination, from the point of view of the remaining public stockholders of the Corporation (such investment banking firm to be selected by a majority of the continuing directors and to be paid a reasonable fee for their services by the Corporation upon receipt of such opinion).

The provisions of this Article THIRTEENTH shall also apply to a business combination with any other entity which at any time has been the beneficial owner, directly or indirectly, of 30% or more of the outstanding shares of stock of the Corporation entitled to vote in elections of directors considered for the purposes of this Article THIRTEENTH as one class, notwithstanding the fact that such other entity has reduced its shareholdings below 30% if, as of the record date for the determination of stockholders entitled to notice of and to vote on to the business combination, such other entity is an “affiliate” of the Corporation (as hereinafter defined).

2. As used in this Article THIRTEENTH, (a) the term “other entity” shall include any corporation, person or other entity and any other entity with which it or its “affiliate” or “associate” (as defined below) has any agreement, arrangement or understanding, directly or indirectly, for the purpose of acquiring, holding, voting or disposing of stock of the Corporation, or which is its “affiliate” or “associate” as those terms are defined in Rule 12b-2 of the General Rules and Regulations under the Securities Exchange Act of 1934 as in effect on March 31, 1981, together with the successors and assigns of such persons in any transaction or series of transactions not involving a public offering of the Corporation’s stock within the meaning of the Securities Act of 1933; (b) an other entity shall be deemed to be the beneficial owner of any shares of stock of the Corporation which the other entity (as defined above) has the right to acquire pursuant to any agreement, arrangement or understanding or upon exercise of conversion rights, warrants or options, or otherwise; (c) the outstanding shares of any class of stock of the Corporation shall include shares deemed owned through application of clause (b) above but shall not include any other shares which may be issuable pursuant to any agreement, or upon exercise of conversion rights, warrants or options, or otherwise; (d) the term “business combination” shall include any merger or consolidation of the Corporation with or into any other entity, or the sale or lease of all or any substantial part of the assets of the Corporation to, or any sale or lease to the Corporation or any subsidiary thereof in exchange for securities of the Corporation of any assets (except assets having an aggregate fair market value of less than $5,000,000) of any other entity; (e) the term “continuing director” shall mean a person who was a member of the Board of Directors of the Corporation elected by stockholders prior to the time that such other entity acquired in excess of 10% of the stock of the Corporation entitled to vote in the election of directors, or a person recommended to succeed a continuing director by a majority of continuing directors; and (f) for the purposes of subparagraphs l(a) and (b) of this Article THIRTEENTH the term “other consideration to be received” shall mean, in addition to other consideration received, if any, capital stock of the Corporation retained by its existing public stockholders in the event of a business combination with such other entity in which the Corporation is the surviving corporation.

3. A majority of the continuing directors shall have the power and duty to determine for the purposes of this Article THIRTEENTH on the basis of information known to them whether (a) such other entity beneficially owns 30% or more of the outstanding shares of stock of the Corporation entitled to vote in elections of directors; (b) an other entity is an “affiliate” or “associate” (as defined above) of another; (c) an other entity has an agreement, arrangement or understanding with another; or (d) the assets being acquired by the Corporation, or any subsidiary thereof, have an aggregate fair market value of less than $5,000,000.

4. No amendment to the Certificate of Incorporation of the Corporation shall amend or repeal any of the provisions of this Article THIRTEENTH, unless the amendment effecting such amendment or repeal shall receive the affirmative vote of the holders of 95% of all shares of stock of the corporation entitled to vote in elections of directors, considered for the purposes of this Article THIRTEENTH as one class; provided that this paragraph 4 shall not apply to, and such 95% vote shall not be required for, any amendment or repeal unanimously recommended to the stockholders by the Board of Directors of the Corporation if all of such directors are persons who would be eligible to serve as “continuing directors” within the meaning of paragraph 2 of this Article THIRTEENTH.

5. Nothing contained in this Article THIRTEENTH shall be construed to relieve any other entity from any fiduciary obligation imposed by law.