You are cordially invited to attend a special meeting (including any adjournments or postponements thereof, the “Special Meeting”) of stockholders of W. R. Grace & Co., a Delaware corporation (“Grace” or the “Company”), to be held at [    ], on [    ], 2021, at [    ], Eastern time.

At the Special Meeting, you will be asked to consider and vote on (i) a proposal to adopt the Agreement and Plan of Merger, dated as of April 26, 2021 (the “Merger Agreement”), by and among Gibraltar Acquisition Holdings LLC, a Delaware limited liability company (“Parent”), Gibraltar Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Sub”), and Grace, (ii) a proposal to approve, on an advisory (non-binding) basis, the compensation that may be paid or become payable to Grace’s named executive officers that is based on or otherwise related to the Merger Agreement and the transactions contemplated by the Merger Agreement (the “Compensation Proposal”), and (iii) a proposal to adjourn the Special Meeting, if necessary or appropriate, to solicit additional proxies if there are insufficient votes to approve the proposal to adopt the Merger Agreement at the time of the Special Meeting (the “Adjournment Proposal”). Parent and Merger Sub are entities that are affiliated with Standard Industries Holdings Inc. (“Standard Industries Holdings”), the parent company of Standard Industries Inc., a privately held global industrial company. Standard Industries Holdings’ related investment platform, 40 North Management LLC (“40 North”), is a long-standing stockholder of Grace. Pursuant to the terms of the Merger Agreement, Merger Sub will merge with and into Grace and the separate corporate existence of Merger Sub will cease, with Grace continuing as the surviving corporation (the “Merger”) and a wholly owned subsidiary of Parent.

If the Merger is completed, you will be entitled to receive $70.00 in cash, without interest and less any applicable withholding taxes, for each share of Grace common stock that you own, unless you have properly exercised your appraisal rights. This amount represents a premium of approximately 59% over Grace’s closing stock price of $44.05 on November 6, 2020, the last trading day prior to the announcement of 40 North’s initial proposal to acquire the Company on November 9, 2020.

The Board of Directors of Grace (the “Board of Directors”), on behalf of Grace and after considering the factors more fully described in the enclosed proxy statement, has unanimously: (i) determined that the Merger Agreement, the Merger and the other transactions contemplated by the Merger Agreement are advisable, fair to and in the best interests of Grace and its stockholders (including unaffiliated security holders); (ii) approved the execution, delivery and performance of the Merger Agreement by Grace and the consummation of the transactions contemplated by the Merger Agreement; and (iii) resolved to recommend that holders of Grace common stock (including unaffiliated security holders) adopt the Merger Agreement and the consummation of the transactions contemplated thereby. The Board of Directors, on behalf of Grace, unanimously recommends that you vote: (1) “FOR” the proposal to adopt the Merger Agreement; (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal; and (3) “FOR” the Adjournment Proposal.

The enclosed proxy statement provides detailed information about the Special Meeting, the Merger Agreement and the Merger. A copy of the Merger Agreement is attached as Annex A to the proxy statement.

The proxy statement also describes the actions and determinations of the Board of Directors in connection with its evaluation of the Merger Agreement and the Merger. You should carefully read and consider the entire enclosed proxy statement and its annexes, including, but not limited to, the Merger Agreement, as they contain important information about, among other things, the Merger and how it affects you.

Whether or not you plan to attend the Special Meeting in person, please sign, date and return, as promptly as possible, the enclosed proxy card in the accompanying prepaid reply envelope or grant your proxy electronically over the Internet or by telephone (using the instructions provided in the enclosed proxy card). If you attend the Special Meeting and vote in person, your vote will revoke any proxy that you have previously submitted.

If you hold your shares in “street name,” you should instruct your bank, broker or other nominee how to vote your shares in accordance with the voting instruction form that you will receive from your bank, broker or other nominee. Your bank, broker or other nominee cannot vote on any of the proposals, including the proposal to adopt the Merger Agreement, without your instructions.

Your vote is very important, regardless of the number of shares that you own. We cannot complete the Merger unless the proposal to adopt the Merger Agreement is approved by the affirmative vote of the holders of at least a majority of the outstanding shares of Grace common stock entitled to vote at the Special Meeting. If you fail to vote in person or by proxy, or fail to instruct your broker on how to vote, it will have the same effect as a vote “AGAINST” the proposal to adopt the Merger Agreement.

If you have any questions or need assistance voting your shares, please contact our proxy solicitor:

On behalf of the Board of Directors, I thank you for your support and appreciate your consideration of these matters.

Neither the U.S. Securities and Exchange Commission nor any state securities regulatory agency has approved or disapproved the Merger, passed upon the merits or fairness of the Merger, the Merger Agreement or the other transactions contemplated thereby or passed upon the adequacy or accuracy of the disclosure in this document. Any representation to the contrary is a criminal offense.

The accompanying proxy statement is dated [    ], 2021 and, together with the enclosed form of proxy card, is first being mailed on or about [    ], 2021.

WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL MEETING IN PERSON, WE ENCOURAGE YOU TO SUBMIT YOUR PROXY AS PROMPTLY AS POSSIBLE: (1) BY TELEPHONE; (2) THROUGH THE INTERNET; OR (3) BY SIGNING AND DATING THE ENCLOSED PROXY CARD AND RETURNING IT IN THE POSTAGE-PAID ENVELOPE PROVIDED. You may revoke your proxy or change your vote at any time before it is voted at the Special Meeting.

If you hold your shares in “street name,” you should instruct your bank, broker or other nominee how to vote your shares in accordance with the voting instruction form that you will receive from your bank, broker or other nominee. Your broker or other agent cannot vote on any of the proposals, including the proposal to adopt the Merger Agreement, without your instructions.

If you are a Grace Stockholder of record, voting in person at the Special Meeting will revoke any proxy that you previously submitted. If you hold your shares through a bank, broker or other nominee, you must obtain a “legal proxy” in order to vote in person at the Special Meeting.

If you fail to (1) return your proxy card, (2) grant your proxy electronically over the Internet or by telephone or (3) vote in person at the Special Meeting, your shares will not be counted for purposes of determining whether a quorum is present at the Special Meeting and, if a quorum is present, will have the same effect as a vote “AGAINST” the proposal to adopt the Merger Agreement but will have no effect on the Compensation Proposal or the Adjournment Proposal.

You should carefully read and consider the entire accompanying proxy statement and its annexes, including, but not limited to, the Merger Agreement, along with all of the documents incorporated by reference into the accompanying proxy statement, as they contain important information about, among other things, the Merger and how it affects you. If you have any questions concerning the Merger Agreement, the Merger, the Special Meeting or the accompanying proxy statement, would like additional copies of the accompanying proxy statement or need help voting your shares of Grace common stock, please contact our proxy solicitor:

The following questions and answers address some commonly asked questions regarding the Merger, the Merger Agreement and the Special Meeting. These questions and answers may not address all questions that are important to you. You should carefully read and consider the more detailed information contained elsewhere in this proxy statement and the annexes to this proxy statement, including, but not limited to, the Merger Agreement, along with all of the documents we refer to in this proxy statement, as they contain important information about, among other things, the Merger and how it affects you. You may obtain the information incorporated by reference in this proxy statement without charge by following the instructions under the caption, “Where You Can Find More Information.”

Even if you plan to attend the Special Meeting in person, to ensure that your shares will be represented at the Special Meeting, we encourage you to sign, date and return the enclosed proxy card in the accompanying prepaid reply envelope or grant your proxy electronically over the Internet or by telephone (using the instructions provided in the enclosed proxy card). If you attend the Special Meeting and vote in person, your vote will revoke any proxy previously submitted.

If you hold your shares in “street name,” you should instruct your bank, broker or other nominee how to vote your shares in accordance with the voting instruction form that you will receive from your bank, broker or other nominee. Your broker or other agent cannot vote on any of the proposals, including the proposal to adopt the Merger Agreement, without your instructions. If you hold your shares in “street name,” you may not vote your shares in person at the Special Meeting unless you obtain a “legal proxy” from your bank, broker or other nominee.

As of the Record Date, there were [    ] shares of Grace common stock outstanding and entitled to vote at the Special Meeting.

If you submit a proxy but fail to provide voting instructions or abstain on any of the proposals listed on the proxy card, your shares will be counted for the purpose of determining whether a quorum is present at the Special Meeting.

If your shares are held in “street name” by your broker, bank or other nominee and you do not instruct the nominee how to vote your shares, your broker, bank or other nominee will not vote on your behalf with respect to any of the proposals, and your shares will not be counted for purposes of determining whether a quorum is present for the transaction of business at the Special Meeting.

Additionally, the Merger Agreement provides that each Company Option and Company SAR outstanding immediately prior to the Effective Time, whether vested or unvested, will be cancelled at the Effective Time and be converted into the right to receive a cash payment (without interest and less applicable withholding taxes) equal to the product of (i) the excess of the Merger Consideration over the per share exercise price of such Company Option or Company SAR, and (ii) the number of shares of Grace common stock covered by such Company Option or Company SAR immediately prior to the Effective Time. Any Company Option or Company SAR that has a per share exercise price that is greater than or equal to the Merger Consideration will be cancelled for no consideration or payment.

Each Company RSU Award and each Company Performance Share Award that is outstanding immediately prior to the Effective Time will be assumed at the Effective Time and converted into the right to receive an amount in cash (without interest) equal to the product of (i) the Merger Consideration and (ii) the number of shares of Grace common stock covered by the applicable award immediately prior to the Effective Time, which converted cash award will be subject to continued service vesting and other terms as set forth in the Merger Agreement, as described in greater detail in the section of this proxy statement captioned “Special Factors—Interests of Executive Officers and Directors of Grace in the Merger—Treatment of Company Equity Awards.”

If a quorum is present at the Special Meeting, the failure of any stockholder of record to: (i) submit a signed proxy card; (ii) grant a proxy over the Internet or by telephone (using the instructions provided in the enclosed proxy card); or (iii) vote in person at the Special Meeting will have the same effect as a vote “AGAINST” the proposal to adopt the Merger Agreement. If you hold your shares in “street name” and a quorum is present at the Special Meeting, the failure to instruct your bank, broker or other nominee how to vote your shares will have the same effect as a vote “AGAINST” the proposal to adopt the Merger Agreement. If a quorum is present at the Special Meeting, abstentions will have the same effect as a vote “AGAINST” the proposal to adopt the Merger Agreement. Each “broker non-vote” will also count as a vote “AGAINST” the

proposal to adopt the Merger Agreement but will have no effect on the Compensation Proposal or the Adjournment Proposal. If you properly sign your proxy card but do not mark the boxes showing how your shares should be voted on a matter, the shares represented by your properly signed proxy will be voted: (1) “FOR” the proposal to adopt the Merger Agreement; (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal; and (3) “FOR” the Adjournment Proposal.

In the event that either Grace or Parent terminates the Merger Agreement, then, under specified circumstances, Grace will be required to pay Parent a termination fee of $141 million or Parent will be required to pay Grace the Parent Termination Fee of $281 million, as described in the section of this proxy statement captioned “Proposal 1: Adoption of the Merger Agreement—Termination Fee.”

effect as a vote “AGAINST” the proposal. A failure to return your proxy card or otherwise vote your shares of Grace common stock (including a failure of your broker, bank or other nominee to vote shares held on your behalf), will have no effect on this proposal, assuming a quorum is present.

For a discussion of the factors that the Board of Directors considered in determining to recommend in favor of the proposal to adopt the Merger Agreement, see the section of this proxy statement captioned “Special Factors—Recommendation of the Board of Directors; Reasons for the Merger; Fairness of the Merger.” In addition, in considering the recommendation of the Board of Directors with respect to the Merger Agreement, you should be aware that some of our directors and executive officers have interests that may be different from, or in addition to, the interests of Grace Stockholders generally. For a discussion of these interests, see the section of this proxy statement captioned “Special Factors—Interests of Executive Officers and Directors of Grace in the Merger.”

If your shares are held through a bank, broker or other nominee, you are considered the “beneficial owner” of shares of Grace common stock held in “street name.” In that case, this proxy statement has been forwarded to you by your bank, broker or other nominee who is considered, with respect to those shares, to be the stockholder of record. As the beneficial owner, you have the right to direct your bank, broker or other nominee how to vote your shares by following their instructions for voting. You are also invited to attend the Special Meeting. However, because you are not the stockholder of record, you may not vote your shares in person at the Special Meeting unless you obtain a “legal proxy” from your bank, broker or other nominee.

A: If you are a stockholder of record (that is, if your shares of Grace common stock are registered in your name with EQ Shareowner Services, our transfer agent), there are four (4) ways to vote:

Please be aware that, although there is no charge for voting your shares, if you vote electronically over the Internet by visiting the address on your proxy card or by telephone by calling the phone number on your proxy card, in each case, you may incur costs such as Internet access and telephone charges for which you will be responsible.

Even if you plan to attend the Special Meeting in person, you are strongly encouraged to vote your shares of Grace common stock by proxy. If you are a record holder or if you obtain a “legal proxy” to vote shares that you beneficially own, you may still vote your shares of Grace common stock in person at the Special Meeting even if you have previously voted by proxy. If you are present at the Special Meeting and vote in person, your previous vote by proxy will not be counted.

If your shares are held in “street name” through a bank, broker or other nominee, you may vote through your bank, broker or other nominee by completing and returning the voting form provided by your bank, broker or other nominee, or, if such a service is provided by your bank, broker or other nominee, electronically over the Internet or by telephone. To vote over the Internet or by telephone through your bank, broker or other nominee, you should follow the instructions on the voting form provided by your bank, broker or nominee.

Please note that if you want to revoke your proxy by mailing a new proxy card to us or by sending a written notice of revocation to us, you should ensure that you send your new proxy card or written notice of revocation in sufficient time for it to be received by us before the Special Meeting.

If you hold your shares of Grace common stock in “street name,” you should contact your bank, broker or other nominee for instructions regarding how to change your vote. You may also vote in person at the Special Meeting if you obtain a “legal proxy” from your bank, broker or other nominee.

If you properly sign your proxy card but do not mark the boxes showing how your shares should be voted on a matter, the shares represented by your properly signed proxy will be voted: (1) “FOR” the proposal to adopt the Merger Agreement; (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal; and (3) “FOR” the Adjournment Proposal.

You may receive more than one (1) set of voting materials, including multiple copies of this proxy statement and multiple proxy cards or voting instruction cards. For example, if you hold your shares in more than one (1) brokerage account, you will receive a separate voting instruction card for each brokerage account in which you hold shares. If you are a stockholder of record and your shares are registered in more than one (1) name, you will receive more than one (1) proxy card.

This proxy statement, and any document to which Grace refers in this proxy statement, may contain forward-looking statements, that is, information related to future, not past, events. Such statements generally include the words “believes,” “plans,” “intends,” “targets,” “will,” “expects,” “suggests,” “anticipates,” “outlook,” “continues,” or similar expressions. Forward-looking statements include, without limitation, statements regarding: financial positions; results of operations; cash flows; financing plans; business strategy; operating plans; capital and other expenditures; impact of COVID-19 on Grace’s business; competitive positions; growth opportunities for existing products; benefits from new technology; benefits from cost reduction initiatives; succession planning; markets for securities; the anticipated timing of closing of the proposed transaction and the potential benefits of the proposed transaction. Grace is subject to risks and uncertainties that could cause actual results or events to differ materially from its projections or that could cause forward-looking statements to prove incorrect. Factors that could cause actual results or events to differ materially from those contained in the forward-looking statements include, without limitation:

Our reported results should not be considered as an indication of our future performance. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. Grace undertakes no obligation to release publicly any revisions to our projections and forward-looking statements, or to update them to reflect events or circumstances occurring after the dates those projections and statements are made.

The enclosed proxy is solicited on behalf of the Board of Directors for use at the Special Meeting.

The Special Meeting will be held at [    ], on [    ], 2021, at [    ], Eastern time.

At the Special Meeting, we will ask stockholders to vote on proposals to:

Our stockholders must adopt the Merger Agreement for the Merger to occur. If our stockholders fail to adopt the Merger Agreement, the Merger will not occur. A copy of the Merger Agreement is attached to this proxy statement as Annex A, and certain provisions of the Merger Agreement are described in the section of this proxy statement captioned “Proposal 1: Adoption of the Merger Agreement.”

The vote on the named executive officer Merger-related compensation proposal is a vote separate and apart from the vote on the proposal to adopt the Merger Agreement. Accordingly, you may vote to adopt the Merger Agreement and vote not to approve the named executive officer Merger-related compensation proposal and vice versa. Because the vote on the named executive officer Merger-related compensation proposal is advisory only, it will not be binding on either Grace or Parent. Accordingly, if the Merger Agreement is adopted and the Merger is completed, the compensation will be payable, subject only to the conditions applicable thereto under the applicable compensation agreements and arrangements, regardless of the outcome of the non-binding, advisory vote of the Grace Stockholders.

We do not expect that any matters other than the proposals set forth above will be brought before the Special Meeting. If, however, such a matter is properly presented at the Special Meeting or any adjournment or postponement thereof, the persons appointed as proxies will have discretionary authority to vote the shares represented by duly executed proxies.

This proxy statement and the enclosed form of proxy are first being mailed to our stockholders on or about [    ].

Only stockholders of record as of the close of business on [   ], the Record Date for the Special Meeting, are entitled to notice of the Special Meeting and to vote at the Special Meeting. As of the Record Date, there were [    ] shares of Grace common stock outstanding and entitled to vote at the Special Meeting.

The holders of a majority of the Grace common stock issued and outstanding and entitled to vote in person or as represented by proxy will constitute a quorum at the Special Meeting. In the event that a quorum is not present at the Special Meeting, it is expected that the meeting will be adjourned to solicit additional proxies. Once a share is represented at the Special Meeting, it will be counted for purposes of determining whether a quorum is present at the Special Meeting. However, if a new record date is set for an adjourned Special Meeting, a new quorum will have to be established. Proxies received but marked as abstentions will be included in the calculation of the number of shares considered to be present at the Special Meeting.

The affirmative vote of the holders of a majority of the outstanding shares of Grace common stock entitled to vote at the Special Meeting is required to adopt the Merger Agreement. As of the Record Date, [    ]

votes constitute a majority of the outstanding shares of Grace common stock entitled to vote at the Special Meeting. The adoption of the Merger Agreement by Grace Stockholders is a condition to the closing of the Merger. The transaction has not been structured to require the approval of a majority of unaffiliated Grace Stockholders.

Approval of each of (i) the Adjournment Proposal, whether or not a quorum is present, and (ii) the Compensation Proposal requires the affirmative vote of a majority of the shares present in person or represented by proxy at the Special Meeting and entitled to vote on the subject matter.

An abstention occurs when a stockholder attends a meeting, in person or by proxy, but abstains from voting. At the Special Meeting, abstentions will be counted in determining whether a quorum is present. If a stockholder abstains from voting or fails to vote its shares of Grace common stock (including the failure of a record owner to execute and return a proxy card and the failure of a beneficial owner of shares held in “street name” by a broker to give voting instructions to the broker), that abstention or failure to vote will have the same effect as if the stockholder voted “AGAINST” the proposal to adopt the Merger Agreement. For stockholders who attend the meeting or are represented by proxy and abstain from voting, the abstention will have the same effect as if the stockholder voted “AGAINST” the Compensation Proposal and “AGAINST” the Adjournment Proposal. However, a failure to return your proxy card or otherwise vote your shares of Grace common stock will have no effect on the Compensation Proposal and the Adjournment Proposal, assuming a quorum is present.

Each “broker non-vote” will also count as a vote “AGAINST” the proposal to adopt the Merger Agreement but will have no effect on the Compensation Proposal or the Adjournment Proposal. Broker non-votes are shares held by brokers that are present in person or by proxy at the Special Meeting, but with respect to which the broker is not instructed by the beneficial owner of such shares how to vote on a particular proposal and the broker does not have discretionary voting power on such proposal. Because brokers do not have discretionary voting authority with respect to any of the three proposals described in this proxy statement, if a beneficial owner of shares of Grace common stock held in “street name” does not give voting instructions to the broker, then those shares will not be present in person or by proxy at the Special Meeting. For shares of Grace common stock held in “street name,” only shares of Grace common stock affirmatively voted “FOR” the proposal to adopt the Merger Agreement will be counted as a vote in favor of such proposal.

As of the Record Date, our directors and executive officers beneficially owned and were entitled to vote, in the aggregate, [    ] shares of Grace common stock, representing approximately [   ]% of the shares of Grace common stock outstanding on the Record Date (and approximately [    ]% of the total shares of Grace common stock outstanding when taking into account Company Options held, in the aggregate, by our directors and executive officers).

We currently expect that our directors and executive officers will vote all of their respective shares of Grace common stock (1) “FOR” the adoption of the Merger Agreement, (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal, and (3) “FOR” the Adjournment Proposal.

The Supporting Stockholder, which beneficially owns 9,865,008 shares of Grace common stock representing approximately 14.9% of the outstanding Grace common stock as of July 21, 2021, has entered into the Voting Agreement with the Company. Pursuant to the Voting Agreement, the Supporting Stockholder has agreed, among other things, to vote its shares of Grace common stock in favor of the proposal to adopt the Merger Agreement. For more information, see the section of this proxy statement captioned “Special Factors—The Voting Agreement.”

All holders of shares of Grace common stock as of the close of business on [    ], the Record Date, including stockholders of record and beneficial owners of Grace common stock registered in the “street name” of a broker, bank or other nominee, are invited to attend the Special Meeting.

To attend the Special Meeting in person, you must provide proof of ownership of Grace common stock as of the Record Date, such as an account statement indicating ownership on that date, and a form of personal identification for admission to the Special Meeting. If you hold your shares in “street name,” and you also wish to be able to vote at the Special Meeting, you must obtain a “legal proxy”, executed in your favor, from your bank, broker or other nominee.

If your shares are registered in your name with our transfer agent, EQ Shareowner Services, you may cause your shares to be voted by returning a signed and dated proxy card in the accompanying prepaid envelope, or you may vote in person at the Special Meeting. Additionally, you may grant a proxy electronically over the Internet or by telephone (using the instructions provided in the enclosed proxy card). You must have the enclosed proxy card available and follow the instructions on the proxy card in order to grant a proxy electronically over the Internet or by telephone. Based on your proxy cards or Internet and telephone proxies, the proxy holders will vote your shares according to your directions.

If you plan to attend the Special Meeting and wish to vote in person, you will be given a ballot at the Special Meeting. If your shares are registered in your name, you are encouraged to vote by proxy even if you plan to attend the Special Meeting in person. If you attend the Special Meeting and vote in person, your vote will revoke any previously submitted proxy.

Voting instructions are included on your proxy card. All shares represented by properly signed and dated proxies received in time for the Special Meeting will be voted at the Special Meeting in accordance with the instructions of the stockholder. Properly signed and dated proxies that do not contain voting instructions will be voted: (1) “FOR” adoption of the Merger Agreement; (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal; and (3) “FOR” the Adjournment Proposal. If you fail to return your proxy card or vote by telephone or via the Internet, and you are a holder of record on the Record Date, unless you attend the Special Meeting and vote in person, your shares of Grace common stock will not be considered present at the Special Meeting for purposes of determining whether a quorum is present at the Special Meeting, which will have the same effect as a vote “AGAINST” the proposal to adopt the Merger Agreement and, assuming a quorum is present, will have no effect on the Compensation Proposal or the Adjournment Proposal.

If your shares are held in “street name” through a bank, broker or other nominee, you may vote through your bank, broker or other nominee by completing and returning the voting form provided by your bank, broker or other nominee or attending the Special Meeting and voting in person with a “legal proxy” from your bank, broker or other nominee. If such a service is provided, you may vote over the Internet or telephone through your bank, broker or other nominee by following the instructions on the voting form provided by your bank, broker or other nominee. If you do not return your bank’s, broker’s or other nominee’s voting form, do not vote via the Internet or telephone through your bank, broker or other nominee, if possible, or do not attend the Special Meeting and vote in person with a “legal proxy” from your bank, broker or other nominee, it will have the same effect as if you voted “AGAINST” the proposal to adopt the Merger Agreement but will not have any effect on the Compensation Proposal or the Adjournment Proposal.

If you are a stockholder of record, you may change your vote or revoke your proxy at any time before it is voted at the Special Meeting by:

Please note that if you want to revoke your proxy by mailing a new proxy card to us or by sending a written notice of revocation to us, you should ensure that you send your new proxy card or written notice of revocation in sufficient time for it to be received by us before the Special Meeting.

If you have submitted a proxy, your appearance at the Special Meeting will not have the effect of revoking your prior proxy, provided that you do not vote in person or submit an additional proxy or revocation, which, in each case, will have the effect of revoking your proxy.

If you hold your shares of Grace common stock in “street name,” you should contact your bank, broker or other nominee for instructions regarding how to change your vote. You may also vote in person at the Special Meeting if you obtain a “legal proxy” from your bank, broker or other nominee.

Any adjournment, postponement or other delay of the Special Meeting, including for the purpose of soliciting additional proxies, will allow stockholders who have already sent in their proxies to revoke them at any time prior to their use at the Special Meeting as adjourned, postponed or delayed.

The Board of Directors, on behalf of Grace, has unanimously: (i) determined that the Merger Agreement, the Merger and the other transactions contemplated by the Merger Agreement are advisable, fair to and in the best interests of Grace and its stockholders (including unaffiliated security holders); (ii) approved the execution, delivery and performance of the Merger Agreement by Grace and the consummation of the transactions contemplated by the Merger Agreement; and (iii) resolved to recommend that Grace Stockholders (including unaffiliated security holders) adopt the Merger Agreement and the consummation of the transactions contemplated thereby.

The Board of Directors, on behalf of Grace, unanimously recommends that you vote: (1) “FOR” the adoption of the Merger Agreement; (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal; and (3) “FOR” the Adjournment Proposal.

The expense of soliciting proxies will be borne by Grace. We have retained MacKenzie Partners, a proxy solicitation firm, to solicit proxies in connection with the Special Meeting at a cost of approximately $[   ] plus expenses. We will also indemnify MacKenzie Partners against losses arising out of its provision of these services on our behalf. In addition, we may reimburse banks, brokers and other nominees representing beneficial owners of shares for their expenses in forwarding soliciting materials to such beneficial owners. Proxies may also be solicited by our directors, officers and employees, personally or by telephone, e-mail, fax, over the Internet or other means of communication. No additional compensation will be paid for such services.

You should not return your stock certificates or send in other documents evidencing ownership of Grace common stock with the proxy card. If the Merger is completed, if your shares of Grace common stock are evidenced by stock certificates, the paying agent for the Merger will send you a letter of transmittal and related materials and instructions for exchanging your shares of Grace common stock evidenced by stock certificates for the Merger Consideration (without interest and subject to required withholding taxes).

Assuming timely satisfaction of necessary closing conditions, including the approval by Grace Stockholders of the proposal to adopt the Merger Agreement, we anticipate that the Merger will be consummated in the fourth quarter of 2021.

If the Merger is consummated, stockholders who continuously hold shares of Grace common stock through the Effective Time, who do not vote in favor of the adoption of the Merger Agreement and who properly demand appraisal of their shares and do not withdraw their demands or otherwise lose their rights to seek appraisal will be entitled to seek appraisal of their shares in connection with the Merger under Section 262 of the DGCL. This means that holders of shares of Grace common stock who perfect their appraisal rights, who do not thereafter withdraw their demand for appraisal, and who follow the procedures in the manner prescribed by Section 262 of the DGCL may be entitled to have their shares appraised by the Delaware Court of Chancery and to receive payment in cash of the “fair value” of their shares of Grace common stock, exclusive of any elements of value

arising from the accomplishment or expectation of the Merger, as determined by the Delaware Court of Chancery, together with interest to be paid on the amount determined to be fair value, if any (or in certain circumstances described in further detail in the section of this proxy statement captioned “Special Factors—Appraisal Rights,” on the difference between the amount determined to be the fair value and the amount paid by the Surviving Corporation in the Merger to each stockholder entitled to appraisal prior to the entry of judgment in any appraisal proceeding). Due to the complexity of the appraisal process, stockholders who wish to seek appraisal of their shares are encouraged to review Section 262 of the DGCL carefully and to seek the advice of legal counsel with respect to the exercise of appraisal rights.

Stockholders considering seeking appraisal should be aware that the fair value of their shares as determined pursuant to Section 262 of the DGCL could be more than, the same as or less than the value of the consideration that they would receive pursuant to the Merger Agreement if they did not seek appraisal of their shares.

To exercise your appraisal rights, you must: (i) submit a written demand for appraisal to Grace before the vote is taken on the adoption of the Merger Agreement; (ii) not submit a proxy or otherwise vote in favor of the proposal to adopt the Merger Agreement; (iii) continue to hold your shares of Grace common stock of record through the Effective Time; and (iv) strictly comply with all other procedures for exercising appraisal rights under Section 262 of the DGCL. Your failure to follow exactly the procedures specified under Section 262 of the DGCL may result in the loss of your appraisal rights. In addition, the Delaware Court of Chancery will dismiss appraisal proceedings in respect of the Merger unless certain stock ownership conditions are satisfied by the stockholders seeking appraisal. The DGCL requirements for exercising appraisal rights are described in further detail in the section of this proxy statement captioned “Special Factors—Appraisal Rights,” which is qualified in its entirety by Section 262 of the DGCL, the relevant section of the DGCL regarding appraisal rights. A copy of Section 262 of the DGCL is reproduced and attached as Annex D to this proxy statement and incorporated herein by reference. If you hold your shares of Grace common stock through a bank, brokerage firm or other nominee and you wish to exercise appraisal rights, you should consult with your bank, brokerage firm or other nominee to determine the appropriate procedures for the making of a demand for appraisal by such bank, brokerage firm or nominee.

If the Merger is completed, the shares of Grace common stock will be delisted from the NYSE and deregistered under the Exchange Act, and shares of Grace common stock will no longer be publicly traded.

At this time, we know of no other matters to be voted on at the Special Meeting. If any other matters properly come before the Special Meeting, your shares of Grace common stock will be voted in accordance with the discretion of the appointed proxy holders.

Unless we have received contrary instructions, we may send a single copy of this proxy statement to any household at which two (2) or more stockholders reside if we believe the stockholders are members of the same family. Each stockholder in the household will continue to receive a separate proxy card. This process, known as “householding,” reduces the volume of duplicate information received at your household and helps to reduce our expenses.

If you would like to receive your own set of our disclosure documents, please contact us using the instructions set forth below. Similarly, if you share an address with another stockholder and together both of you would like to receive only a single set of our disclosure documents, please contact us using the instructions set forth below.

If you are a stockholder of record, you may contact us by calling or writing to Grace Shareholder Services at the address or phone number provided below. Eligible stockholders of record receiving multiple copies of this proxy statement can request householding by contacting us in the same manner. If a bank, broker or other nominee holds your shares, please contact your bank, broker or other nominee directly.

If you have any questions concerning the Merger, the Special Meeting or this proxy statement, would like additional copies of this proxy statement or need help voting your shares of Grace common stock, please contact our proxy solicitor:

This section of the proxy statement describes the material aspects of the Merger and certain special factors concerning the Merger of which you should be aware. This discussion of the Merger is qualified in its entirety by reference to the Merger Agreement, which is attached to this proxy statement as Annex A and incorporated into this proxy statement by reference. You should carefully read and consider the entire Merger Agreement, which is the legal document that governs the Merger, because this document contains important information about the Merger and how it affects you.

Grace, a Delaware corporation, is a leading global specialty chemical company. Grace’s two industry-leading business segments—Catalysts Technologies and Materials Technologies—provide innovative products, technologies, and services that enhance the products and processes of our customers around the world. With approximately 4,000 employees, Grace operates and/or sells to customers in over 60 countries. More information about Grace is available at www.grace.com. Grace common stock is listed on the New York Stock Exchange (“NYSE”) under the symbol “GRA.”

A detailed description of the Company’s business is contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, as amended, which is incorporated by reference into this proxy statement. See the section of this proxy statement captioned “Where You Can Find More Information.”

Parent was formed on April 22, 2021, solely for the purpose of engaging in the transactions contemplated by the Merger Agreement, and has not engaged in any business activities other than in connection with the transactions contemplated by the Merger Agreement and arranging of the equity financing and debt financing in connection with the Merger.

Merger Sub is a wholly owned subsidiary of Parent and was formed on April 23, 2021, solely for the purpose of engaging in the transactions contemplated by the Merger Agreement, and has not engaged in any business activities other than in connection with the transactions contemplated by the Merger Agreement and arranging of the equity financing and debt financing in connection with the Merger.

Standard Industries Holdings is the parent company of Standard Industries, a privately held global industrial company operating in over 80 countries with over 15,000 employees, as well as the direct or indirect parent company of Parent Holdings, Midco Holdings, Parent and Merger Sub. The Standard Industries ecosystem spans a broad array of holdings, technologies and investments—including both public and private companies from early to late-stage—as well as world-class building materials assets and next-generation solar solutions. Throughout its 140-year history, Standard Industries has leveraged its deep industry expertise and vision to create outsize value across its businesses, which today include operating companies GAF, BMI, Siplast, GAF Energy, Schiedel and

SGI, as well as related businesses 40 North, a multi-billion-dollar investment platform, 40 North Ventures and Winter Properties. More information about Standard Industries is available at www.standardindustries.com. Standard Industries Holdings’ related investment platform 40 North is a long-standing stockholder of Grace. At the Effective Time, the Surviving Corporation, will be directly owned by Parent.

In connection with the transactions contemplated by the Merger Agreement, (i) Standard Industries Holdings has provided Parent with an equity commitment of $3,516 million and (ii) Parent has obtained debt financing commitments in an aggregate amount of $3,455 million ($3,905 million including the revolving credit facility commitment) pursuant to the Debt Commitment Letter. Such amounts will be used to fund the aggregate purchase price required to be paid at the closing of the Merger and to also fund certain other payments (including the Merger Amounts), subject to the terms and conditions of the Merger Agreement. In addition, Standard Industries Holdings has agreed to guarantee the payment of certain liabilities and obligations of Parent under the Merger Agreement, subject to an aggregate cap equal to $290 million, including any termination fee and amounts in respect of certain reimbursement and indemnification obligations of Parent and Merger Sub for certain costs, expenses or losses incurred or sustained by Grace, as specified in the Merger Agreement. For more information, please see the section of this proxy statement captioned “—Financing of the Merger.”

Midco Holdings was formed on April 22, 2021, solely for the purpose of engaging in the transactions contemplated by the Merger Agreement, and has not engaged in any business activities other than in connection with the transactions contemplated by the Merger Agreement and arranging of the equity financing and debt financing in connection with the Merger.

Parent Holdings was formed on April 22, 2021, solely for the purpose of engaging in the transactions contemplated by the Merger Agreement, and has not engaged in any business activities other than in connection with the transactions contemplated by the Merger Agreement and arranging of the equity financing and debt financing in connection with the Merger.

40 North serves as principal investment manager to 40 North Latitude Feeder and 40 North Latitude Master.

The principal business of 40 North Latitude Feeder is the making of investments in publicly traded securities and other assets.

The principal business of 40 North GP III is to serve as general partner of 40 North Latitude Feeder.

The principal business of 40 North Latitude Master is the making of investments in securities and other assets.

David S. Winter and David J. Millstone serve as the sole members and principals of each of 40 North and 40 North GP III, as the sole directors of 40 North Latitude Master, as directors, Co-Executive Chairmen and Chief Executive Officers of Standard Industries and as the directors, Co-Executive Chairmen, Chief Executive Officers and Presidents of Standard Industries Holdings.

Upon the terms and subject to the conditions of the Merger Agreement, Merger Sub will merge with and into Grace and the separate corporate existence of Merger Sub will cease, with Grace continuing as the Surviving Corporation. As a result of the Merger, Grace will become a wholly owned subsidiary of Parent, and Grace common stock will no longer be publicly traded and will be delisted from the NYSE. In addition, Grace common stock will be deregistered under the Exchange Act, and we will no longer file periodic reports with the SEC. If the Merger is completed, you will not own any shares of the capital stock of the Surviving Corporation.

The Effective Time will occur upon the filing of a certificate of merger with the Secretary of State of the State of Delaware (or at such later time as we, Parent and Merger Sub may agree and specify in the certificate of merger).

If the Merger Agreement is not adopted by Grace Stockholders, or if the Merger is not completed for any other reason:

At the Effective Time, each share of Grace common stock (other than Excluded Shares, which include, for example, shares of Grace common stock owned by stockholders who have properly and validly exercised their statutory rights of appraisal in accordance with Section 262 of the DGCL) outstanding as of immediately prior to the Effective Time will be cancelled and automatically converted into the right to receive the Merger Consideration, without interest and less any applicable withholding taxes.

After the Merger is completed, you will have the right to receive the Merger Consideration in respect of each share of Grace common stock that you own (without interest and less any applicable withholding taxes), but you will no longer have any rights as a stockholder (except that stockholders who properly exercise their appraisal rights will have a right to receive payment of the “fair value” of their shares as determined pursuant to an appraisal proceeding, as contemplated by Delaware law). For more information, please see the section of this proxy statement captioned “—Appraisal Rights.”

Treatment of Company Options and Company SARs. The Merger Agreement provides that each Company Option and each Company SAR that is outstanding immediately prior to the Effective Time will vest at closing and be converted into the right to receive an amount in cash equal to the product of Merger Consideration (less the applicable exercise price) and the number of shares of Grace common stock covered by such Company Option or Company SAR (without interest and less applicable withholding taxes). Payment of these cash amounts will be paid within three (3) business days after the Effective Time. Any Company Option or Company SAR that has a per share exercise price that is greater than or equal to the Merger Consideration will be cancelled at the Effective Time for no consideration or payment.

Treatment of Company RSU Awards and Company Performance Share Awards. The Merger Agreement provides that each Company RSU Award and each Company Performance Share Award that is outstanding immediately prior to the Effective Time will be assumed and converted into the right to receive an amount in cash (without interest) equal to the product obtained by multiplying the Merger Consideration by the number of shares of Grace common stock covered by such award immediately prior to the Effective Time, which converted cash award will be subject to continued service vesting and other terms as set forth in the Merger Agreement.

As part of its ongoing consideration and evaluation of its long-term value creation opportunities, the Board of Directors and senior management regularly review and assess the Company’s business strategies, objectives and key initiatives, including strategic opportunities and challenges, and have considered various strategic options potentially available to the Company, all with the goal of enhancing value for Grace Stockholders. The strategic considerations have focused on, among other things, the Company’s growth opportunities as well as the business environment facing the Company and its industry and have from time to time included consideration of capital structure, potential business combination, acquisition or sale transactions and other financial and strategic alternatives.

As a fundamentally-based investment platform focused on public equities, 40 North takes concentrated, long term positions across a range of sectors. Beginning in 2018 after 40 North made its initial investment in the Company, representatives of 40 North periodically met with members of Company management to discuss the Company’s strategic direction and ongoing business plans, among other matters.

On May 7, 2018, 40 North filed with the SEC a beneficial ownership report on Schedule 13D (the “13D”), which disclosed, among other things, that 40 North had acquired beneficial ownership of 9.9% of the then-outstanding shares of Grace common stock. Thereafter, 40 North filed with the SEC several amendments to the 13D, which disclosed, among other things, successive increases in 40 North’s beneficial ownership of Grace common stock such that, as of the December 26, 2018 amendment to the 13D, 40 North reported beneficial ownership of 13.9% of the then-outstanding shares of Grace common stock.

On February 20, 2019, the Company entered into a letter agreement (the “2019 Letter Agreement”) with 40 North and certain of its affiliates pursuant to which the Company agreed to increase the size of the Board of

Directors and to include Kathleen G. Reiland, an employee of 40 North, and Henry R. Slack, who had been identified by 40 North but was not associated with either 40 North or the Company, on the slate of director nominees recommended by the Board of Directors for election at the Company’s 2019 annual meeting of stockholders. Pursuant to the 2019 Letter Agreement, 40 North agreed to certain standstill restrictions and confidentiality obligations. In connection with its entry into the 2019 Letter Agreement, 40 North filed with the SEC an amendment to the 13D, which disclosed, among other things, 40 North’s beneficial ownership of 14.0% of the then-outstanding shares of Grace common stock. During Ms. Reiland’s tenure on the Board of Directors, 40 North continued its practice of periodically meeting with members of Company management to discuss the Company’s strategic direction and business plan, among other matters.

In February 2019, the Company and a potential strategic partner (“Counterparty A”), which had previously expressed an interest in exploring a potential strategic transaction with the Company, entered into a confidentiality agreement and began to engage in discussions and due diligence regarding a potential business combination transaction. Discussions and due diligence continued throughout February and March 2019.

In March 2019, a representative of the Company contacted another potential strategic partner (“Counterparty B”) on behalf of the Company to assess Counterparty B’s possible interest in a potential strategic transaction with the Company. Counterparty B indicated that it did not have an interest in further discussions regarding a transaction with the Company.

In April 2019, Counterparty A notified the Company that it would not continue to pursue a potential strategic transaction with the Company, explaining that it did not want to assume certain legacy liabilities of the Company.

On May 8, 2019, Ms. Reiland and Mr. Slack were elected to the Board of Directors at the Company’s 2019 annual meeting of stockholders for terms expiring at the Company’s annual meeting of stockholders in 2020 and 2022, respectively.

Throughout the second half of 2019 and first half of 2020, the Board of Directors continued to review the Company’s strategic alternatives, including by preliminary discussions with a significant shareholder of Counterparty A to explore possible alternative structures for a potential strategic transaction involving the Company and Counterparty A. The dialogue between the shareholder of Counterparty A and the Company during such period did not include any discussion of the valuation of the Company or the price that would be paid for shares of Grace common stock in a potential strategic transaction.

On May 12, 2020, Ms. Reiland’s term as a director expired and the Board of Directors reappointed her to the Board of Directors for a term expiring at the Company’s annual meeting of stockholders in 2021.

Over the course of the summer of 2020, the Board of Directors and Grace management received communications from several Grace Stockholders not affiliated with 40 North regarding Grace’s strategic direction, including in the form of letters to the Board of Directors and questions to Grace management during scheduled investor conference calls and virtual meetings. Among other things, these investors argued that, in light of Grace’s stock price performance, the Board of Directors should undertake a strategic review process. On August 23, 2020, Ms. Reiland sent an email to other members of the Board of Directors to express her agreement with the substance of these investor communications, and thereby raising concerns regarding the Company’s stock price performance and urging the Board of Directors to accelerate its plans to undertake a strategic review process.

On August 30, 2020, a meeting of the Board of Directors was held, during which the Board of Directors discussed its plans to undertake a strategic review process, as it has historically undertaken from time to time. The consensus view of the Board of Directors was that the Board of Directors should undertake a strategic review process. Following discussion, the Board of Directors determined to engage Goldman Sachs and Moelis to serve as the Company’s financial advisors in conducting a strategic review of the Company’s strategic alternatives, with each of Goldman Sachs and Moelis undertaking independent analyses, in order to assist the Board of Directors in determining the best course of action to maximize long-term value for the Company and its stockholders. The Board of Directors retained each of Goldman Sachs and Moelis based upon their qualifications, experience and expertise.

On September 8, 2020, the Company’s Chief Executive Officer, Hudson La Force, met telephonically with 40 North’s principals, David J. Millstone and David S. Winter, to provide an update on the Board of Directors’ intent to conduct a strategic review with the advice and assistance of the Company’s financial advisors, Goldman Sachs and Moelis, as well as the Company’s outside counsel, Wachtell, Lipton, Rosen & Katz (“Wachtell Lipton”).

On September 9, 2020, a meeting of the Board of Directors was held, which was attended by representatives of Goldman Sachs, Moelis and Wachtell Lipton. Representatives of Goldman Sachs and Moelis separately discussed with the Board of Directors their initial perspectives on strategic alternatives potentially available to the Company and plans for a more detailed preliminary assessment scheduled for a subsequent meeting. In addition, representatives of Wachtell Lipton described to the directors their fiduciary duties in connection with evaluating strategic alternatives or considering a mergers and acquisitions process.

On October 9, 2020, a meeting of the Board of Directors was held, during which representatives of Goldman Sachs and Moelis separately presented their independent preliminary assessments regarding the Company’s potential strategic alternatives, including a review of the public equity market perspectives regarding the Company, a financial analysis of the Company’s standalone plan, potential counterparties to strategic transactions, and possible means of pursuing certain strategic transactions involving the Company. In the course of their presentations, representatives of Goldman Sachs and Moelis reviewed their independent preliminary financial analyses of the Company based on various methodologies. The representatives of Goldman Sachs and Moelis each independently advised the Board of Directors that, in light of equity market volatility and dislocation due to the COVID-19 pandemic, the then-current valuation of Grace common stock in public equity markets undervalued the Company relative to its specialty chemical peers and the values for the Company implied by the preliminary financial analyses. In addition, the representatives of Goldman Sachs and Moelis each independently advised the Board of Directors that any outreach to potential counterparties to a business combination or sale transaction should be made privately in order to, among other things, mitigate the risk that public outreach by the Company would lead to the use of a dislocated market price of Grace common stock as a reference point for possible proposals by potential transaction counterparties rather than the Company’s intrinsic value. Following the presentations from the Company’s financial advisors and discussion among the directors, during which Ms. Reiland expressed her preference for the Company to conduct a public (as opposed to private) strategic review process, the Board of Directors directed the Company’s management and financial advisors to privately contact potential transaction counterparties to evaluate the possibility of a potential business combination or sale transaction involving the Company.

When the Board of Directors determined not to pursue the public strategic review process preferred by Ms. Reiland, Ms. Reiland concluded that there was no longer a purpose to her continuing to serve on the Board of Directors.

On October 13, 2020, Ms. Reiland delivered to the Board of Directors a letter tendering her resignation from the Board of Directors, effective immediately. In connection with Ms. Reiland’s resignation, 40 North filed with the SEC an amendment to the 13D, which disclosed, among other things, 40 North’s beneficial ownership of 14.9% of the then-outstanding shares of Grace common stock, and to which Ms. Reiland’s resignation letter was attached as an exhibit. As a result of Ms. Reiland’s resignation, pursuant to the 2019 Letter Agreement, the standstill restrictions applicable to 40 North and its affiliates pursuant to the 2019 Letter Agreement expired 15 days following the date of her resignation.

Over the course of October, November and December 2020, Mr. La Force and representatives of the Company, including its financial advisors, at the direction of the Board of Directors, contacted five strategic parties identified by the Company, Goldman Sachs and Moelis as potentially having an interest in a potential strategic transaction involving the Company. In addition, representatives of various financial sponsors contacted Goldman Sachs and Moelis to express an interest in a possible strategic transaction involving a combination of the Company with all or a part of their portfolio companies. While certain parties held one or more meetings with the Company’s management or financial advisors, none of the parties (other than Counterparty C (as defined below)) entered into a confidentiality or standstill agreement with the Company to facilitate further discussions regarding a potential transaction.

In addition, Mr. La Force met telephonically with the Chairman of Counterparty A on multiple occasions between November 2020 and February 2021. The Chairman of Counterparty A indicated that Counterparty A could be interested in a potential strategic transaction with the Company, but did not make a proposal for a transaction with the Company and ultimately did not continue discussions regarding such a transaction.

Between the date of Ms. Reiland’s resignation and November 9, 2020, 40 North continued to consider Grace’s strategic direction and 40 North’s investment in Grace, recognizing that the standstill restrictions (including those applicable to the submission of a public takeover proposal) expired 15 days following the date of Ms. Reiland’s resignation. In particular, 40 North considered that Grace’s share price performance did not reflect the strength of its underlying business. Further to that assessment, on November 9, 2020, after determining that taking Grace private represented the most credible path to unlock value for the Company and its stockholders with a high level of certainty, 40 North sent a letter to the Board of Directors, which was also filed with the SEC as an exhibit to an amendment to the 13D, pursuant to which 40 North and its affiliated investment funds proposed to acquire the Company for $60.00 per share of Grace common stock in cash, subject to certain conditions (the “November 9 Proposal”).

Later that day, a meeting of the Board of Directors was held, which was attended by representatives of Goldman Sachs, Moelis and Wachtell Lipton, during which the Board of Directors reviewed and considered the November 9 Proposal. Following discussion, the Board of Directors determined that the November 9 Proposal was inadequate and significantly undervalued the Company. Following the conclusion of the special meeting of the Board of Directors, the Company issued a press release confirming the Company’s receipt of the November 9 Proposal. The press release disclosed that the Board of Directors was “carefully evaluating and thoroughly discussing its value creation opportunities” and that given “the Company’s strong prospects and its ongoing review of the alternative opportunities available, Grace’s Board of Directors unanimously believes that 40 North’s $60 per share proposal significantly undervalues the Company and is not a basis for further discussion.” The press release also explained that the Board of Directors remained “open to all opportunities to maximize value for shareholders.”

Upon review of the Board of Directors’ response, 40 North was disappointed at the rejection of its November 9 Proposal without any further engagement. Nevertheless, 40 North began to consider possible options for further pursuing the potential transaction in light of that development, including the possibility of initiating an unsolicited tender offer and/or undertaking a proxy contest.

On November 17, 2020, Mr. La Force met telephonically with representatives of Counterparty B. Counterparty B indicated that it did not have an interest in pursuing a potential strategic transaction involving the Company at such time.

On November 23, 2020, a meeting of the Board of Directors was held, during which Mr. La Force provided an update regarding the ongoing review of strategic alternatives and the assessment of potential transactions that would maximize the long-term value of the Company for its stockholders.

On December 4, 2020, the Chairman and Chief Executive Officer of a portfolio company of a financial sponsor, along with representatives of the financial sponsor, met telephonically with representatives of the Company to discuss a possible strategic transaction involving a combination of the Company with the portfolio company (“Counterparty C”).

On December 16, 2020, the Company and Counterparty C entered into a confidentiality agreement containing customary provisions, including a customary standstill provision that would terminate upon the occurrence of certain events, including the entry by the Company into an agreement providing for the sale or change in control of the Company. Thereafter, during the remainder of December 2020 and throughout the first three months of 2021, Counterparty C, with the assistance of its advisors, conducted due diligence on the Company, including through telephone calls and videoconferences with Company management.

On December 18, 2020, a meeting of the Board of Directors was held, during which Mr. La Force provided an update regarding the ongoing review of strategic alternatives.

Between the November 9 Proposal and January 11, 2021, 40 North continued to consider Grace’s strategic direction and 40 North’s investment in Grace, including the response of the Board of Directors to the November 9 Proposal. 40 North continued to be of the view that Grace offered a strong and unique, but unrealized, value proposition that could make it a standout player in the world of specialty chemicals and that a take-private

transaction would offer an opportunity for the Company’s existing stockholders to realize immediate liquidity at a value that, in 40 North’s view, far exceeded what Grace would be able to achieve on its then current course. 40 North ultimately determined to submit an improved offer in lieu of the alternative of an unsolicited tender offer or a proxy contest.

On January 11, 2021, 40 North sent another letter to the Board of Directors, which was also filed with the SEC as an exhibit to an amendment to the 13D, pursuant to which 40 North and its affiliated investment funds proposed to acquire the Company for $65.00 per share of Grace common stock in cash, subject to certain conditions (the “January 11 Proposal”). This letter explained that the January 11 Proposal represented “a premium of 62% over the Company’s unaffected share price” prior to October 14, 2020, when 40 North filed an amendment to the 13D disclosing Ms. Reiland’s resignation, and “a 54% premium over the Company’s unaffected 30-day VWAP” per Bloomberg, as of October 13, 2020. 40 North disclosed that they were advised “by Citi and J.P. Morgan, and [that] they, along with Deutsche Bank and BNP Paribas, have confirmed to us in writing that they are highly confident that they will be able to arrange the necessary financing for the acquisition.” In addition, 40 North reiterated that “we have conducted extensive due diligence and analysis based on publicly available information and can reconfirm that our remaining diligence requirements are strictly confirmatory in nature and can be completed on an accelerated basis.”

On January 12, 2021, a meeting of the Board of Directors was held, which was attended by representatives of Goldman Sachs, Moelis and Wachtell Lipton, during which Mr. La Force provided an update regarding the ongoing review of strategic alternatives, including the Company’s ongoing engagement with Counterparty C. The Board of Directors reviewed 40 North’s January 11 Proposal and determined that it would be in the best interests of the Company to respond to 40 North by offering to enter into a customary confidentiality agreement with 40 North, so that the Company might provide 40 North with additional information, and to engage with 40 North in discussions regarding 40 North’s proposal, in order for 40 North to be in a position to potentially further increase the value of its offer.

On January 15, 2021, in response to 40 North’s January 11 Proposal, the Company sent a letter to Messrs. Millstone and Winter, the text of which was included in a press release issued by the Company. The letter explained that the Board of Directors had “met and discussed [40 North’s] revised proposal [and is] willing to discuss a sale of Grace to 40 North in the context of [Grace’s] ongoing review of strategic alternatives. Any transaction would need to be at a price level that reflects the full value of Grace for its shareholders.” The Company’s letter conveyed that the Company “would be willing to share with [40 North], under customary and appropriate confidentiality arrangements, information that would support a full valuation of Grace.” Following receipt of the Company’s letter, at the direction of 40 North, a representative of Sullivan and Cromwell LLP (“Sullivan & Cromwell”), outside counsel to 40 North, requested a copy of a draft confidentiality agreement.

Over the course of January 14 and 15, 2021, members of management of the Company and representatives of Counterparty C, including their financial advisors, held a series of meetings by videoconference to present information regarding each of their respective businesses, managements, strategies and financial attributes.

On January 18, 2021, representatives of Wachtell Lipton provided a draft confidentiality agreement (the “2021 Confidentiality Agreement”) to representatives of Sullivan & Cromwell.

On January 21, 2021, a meeting of the Board of Directors was held, during which Mr. La Force provided an update regarding the ongoing review of strategic alternatives, including the discussions with Counterparty C and its evaluation of a potential strategic transaction involving the Company, as well as the status of negotiations of the 2021 Confidentiality Agreement with 40 North. The Board of Directors directed the Company’s management to continue to negotiate the 2021 Confidentiality Agreement with 40 North and, following its execution, proceed with furnishing certain due diligence information to 40 North so that it might be in a position to potentially further increase the value of its offer.

Also on January 21, 2021, representatives of Sullivan & Cromwell provided a revised draft of the 2021 Confidentiality Agreement to representatives of Wachtell Lipton, and over the course of the final two weeks of January 2021, representatives of Wachtell Lipton and Sullivan & Cromwell continued to exchange drafts of the 2021 Confidentiality Agreement.

On January 22, 2021, representatives of the Company and Counterparty C, including their respective financial advisors, met by videoconference to discuss certain financial analyses with respect to, and the potential synergies that might be realized by, a hypothetical combined company in order that such parties might determine whether to pursue a potential business combination transaction.

On February 1, 2021, the Company entered into the 2021 Confidentiality Agreement with 40 North and certain of its affiliates. In the 2021 Confidentiality Agreement, 40 North and its affiliates agreed, among other things, to comply with certain standstill restrictions prohibiting 40 North from taking certain actions including purchasing additional shares of Grace common stock, launching a proxy contest to seek representation on the Board of Directors, entering into any arrangements with directors of Grace, launching a hostile tender offer or forming any “groups” with third parties seeking to control Grace, until March 31, 2021, subject to the earlier termination of such restrictions in certain circumstances. The Company agreed, among other things, that the Board of Directors would consider timely any nomination by 40 North of director candidates for the Company’s 2021 annual meeting of stockholders delivered to the Company on or before the fifteenth (15th) day following the expiration or termination of the standstill restrictions. 40 North determined that it would enter into a short-duration standstill to pursue a negotiated transaction, but only if it did not preclude 40 North from nominating directors at the 2021 annual stockholders meeting, which 40 North thought was particularly important given that Grace has a classified Board of Directors.

On February 8, 2021, 40 North and certain of its advisors were provided with access to an electronic data room containing confidential due diligence information with respect to the Company. Thereafter, throughout February, March and April 2021, 40 North, with the assistance of its advisors, conducted additional due diligence on the Company, including through telephone calls and videoconferences with Company management.

On February 15, 2021, members of management of the Company, including its financial advisors, held a series of meetings by videoconference with representatives of 40 North to present information regarding the Company’s business, its management, strategy and financial attributes.

On February 17, 2021, representatives of the Company and Counterparty C, including their respective financial advisors, again met by videoconference to discuss the potential synergies that might be realized by a hypothetical combined company.

On February 22, 2021, Counterparty C delivered a letter from its Chairman and Chief Executive Officer to Mr. La Force, which letter proposed an all-stock merger with Counterparty C (the “February 22 Proposal”), subject to certain conditions. Counterparty C’s February 22 Proposal indicated that Grace Stockholders would retain a 36%-37% ownership interest in the combined company. A financial analysis of Counterparty C’s February 22 Proposal conducted by the Company’s financial advisors indicated that the proposal implied an upfront value per share of Grace common stock (before giving effect to synergies) that was less than the $65.00 per share offered by 40 North in its January 11 Proposal. The financial analysis also indicated that Counterparty C’s February 22 Proposal did not reflect that, based on the information about Counterparty C available to the Company and its advisors at the time, the Company should be valued at a premium multiple relative to the business of Counterparty C proposed to be combined with the Company, even before accounting for a change-of-control premium for the Company’s stockholders.

On February 24, 2021, Mr. La Force contacted the Chairman and Chief Executive Officer of Counterparty C to express disappointment in the economic terms implied by the proposal, in particular that such terms implied a change of control of the Company without offering an adequate premium. Mr. La Force and the Chairman and Chief Executive Officer of Counterparty C agreed to continue discussions and due diligence and that the Company and Counterparty C would continue to engage with their respective financial advisors so that Counterparty C might submit a revised proposal that would provide greater value to Grace Stockholders.

On February 25, 2021, a meeting of the Board of Directors was held, during which Mr. La Force updated the other members of the Board of Directors regarding the Company’s ongoing engagement with Counterparty C and 40 North. During the meeting, Mr. La Force and the other members of the Board of Directors reviewed the terms of Counterparty C’s February 22 Proposal and considered it in the context of 40 North’s January 11 Proposal. The Board of Directors discussed Mr. La Force’s response to the Chairman and Chief Executive Officer of Counterparty C, and expressed their concurrence with Mr. La Force’s encouragement of continued

engagement between the Company and Counterparty C so that Counterparty C might submit a proposal on terms that could be compelling to the Company. The Board of Directors also directed the Company’s management and financial advisors to continue to provide due diligence information to 40 North so that it might be in a position to potentially further increase the value of its offer.

Throughout February and March 2021, representatives of 40 North met regularly with representatives of Citigroup Global Markets Inc. (“Citi”), J.P. Morgan Securities LLC (“J.P. Morgan”) and Sullivan & Cromwell to discuss, among other things, the progress of due diligence being conducted by 40 North, 40 North’s perspective regarding its investment in Grace and the potential transaction, and certain of the Citi and J.P. Morgan Discussion Materials (which are described in further detail in the section of this proxy statement captioned “—Summary of Certain Discussion Materials Provided by Citigroup Global Markets Inc. and J.P. Morgan Securities LLC”).

Throughout March 2021, representatives of the Company, including at various times Mr. La Force and the Company’s financial advisors and outside counsel, participated in discussions with representatives of Counterparty C with a view to obtaining additional information from Counterparty C regarding its business and proposed valuation, improving Counterparty C’s proposal and exploring potential transaction structures.

On March 7, 2021, a meeting of the Board of Directors was held, during which the Board of Directors reviewed Counterparty C’s February 22 Proposal and considered it in the context of 40 North’s January 11 Proposal as well as the Company’s standalone strategic plan. The Board of Directors discussed that Counterparty C’s February 22 Proposal depended on valuation assumptions regarding Counterparty C that the Company was not in a position to verify given that Counterparty C was privately held, whereas the material information regarding the Company was publicly disclosed. The Board of Directors discussed that the Company would need additional information from Counterparty C to verify its proposed valuation of itself relative to the Company and that, to date, Counterparty C was unwilling to proceed with mutual due diligence. Therefore, the Board of Directors directed the Company’s management to further engage with Counterparty C, including to respond with a counteroffer to the February 22 Proposal and to seek to facilitate mutual due diligence, in order to determine whether Counterparty C would make an actionable proposal for a potential business combination transaction, while also continuing to engage in the active due diligence process with 40 North to enable 40 North to complete its due diligence review of the Company and submit its best and final offer to acquire the Company.

On March 8, 2021, Mr. La Force called the Chairman and Chief Executive Officer of Counterparty C to convey a counteroffer, in response to Counterparty C’s February 22 Proposal and subject to further due diligence, of a relative valuation that would result in Grace Stockholders retaining a 45% ownership interest in the combined company.

On March 12, 2021, the Chairman and Chief Executive Officer of Counterparty C met telephonically with Mr. La Force and conveyed to Mr. La Force a revised proposal for an all-stock merger between the Company and Counterparty C (the “March 12 Proposal”), subject to certain conditions. Counterparty C’s March 12 Proposal indicated that Grace Stockholders would retain a 39%-40% ownership interest in the combined company.

On March 17, 2021, Mr. La Force met telephonically with the Chairman and Chief Executive Officer of Counterparty C to convey a counteroffer, in response to Counterparty C’s March 12 Proposal and subject to further due diligence, of a relative valuation that would result in Grace Stockholders retaining a 41%-42% ownership interest in the combined company.

In a March 19, 2021 email to Mr. La Force, the Chairman and Chief Executive Officer of Counterparty C reiterated the ownership range contemplated by the March 12 Proposal.

On March 22, 2021, Mr. La Force met telephonically with representatives of Counterparty C to discuss Counterparty C’s March 12 Proposal and the additional work, including due diligence and consideration of transaction structures and mechanics, that would be required to progress discussions toward an actionable proposal. During this conversation and various conversations between the advisors to the Company and the advisors to Counterparty C, Counterparty C was unwilling to commit to further improvements to its offer or to advance with any mutual due diligence without an agreement in principle on the relative valuation implied by Counterparty C’s March 12 Proposal.

On March 25, 2021, a meeting of the Board of Directors was held, which was attended by representatives of Goldman Sachs, Moelis and Wachtell Lipton, during which Mr. La Force updated the other members of the Board of Directors regarding the ongoing engagement with Counterparty C and 40 North. Mr. La Force advised the Board of Directors that, in recent discussions, Counterparty C had not been willing to improve the terms of its offer or proceed with further engagement until the Company agreed in principle to the relative valuation implied by Counterparty C’s March 12 Proposal. Mr. La Force also described the status of the ongoing due diligence process undertaken by 40 North, and explained that the Company was continuing to provide information in the virtual data room and organize due diligence calls in an effort to finalize the diligence process and advance the negotiation of deal terms and transaction documentation. Shortly following the conclusion of the Board of Directors’ meeting, at the direction of the Board of Directors, representatives of the Company delivered to representatives of 40 North a bid instruction letter with directions for 40 North’s submission of a final, definitive, binding proposal, including details regarding purchase price, financing, closing certainty and timing, as well as mark-ups of key transaction documents to be provided by the Company.

On March 25, 2021, Mr. La Force wrote the Chairman and Chief Executive Officer of Counterparty C to reiterate that the Company could not commit to the valuation range implied by Counterparty C’s March 12 Proposal and that any change-of-control combination must be at a valuation that compared favorably at the outset with other available alternatives. Mr. La Force suggested that the parties progress their engagement by proceeding with more advanced mutual due diligence and transaction-structuring discussions, without commitments of either party to a specific valuation range.

On March 27, 2021, the Chairman and Chief Executive Officer of Counterparty C responded to Mr. La Force to confirm that it had not identified any means of reaching a compromise on valuation, including in light of the alternatives available to the Company. The Chairman and Chief Executive Officer of Counterparty C further explained that Counterparty C would not agree to mutual due diligence without an agreement in principle on relative valuation.

On March 30, 2021, representatives of Wachtell Lipton sent to representatives of 40 North, including Sullivan & Cromwell, an initial draft of a Merger Agreement and Voting Agreement reflecting, among other things, (1) a termination fee equal to 2.0% of the Company’s equity value payable by the Company upon a termination of the Merger Agreement under certain circumstances, (2) a reverse termination fee equal to 10.0% of the Company’s equity value payable by Parent upon a termination of the Merger Agreement under certain circumstances and (3) a right of the Company to continue to pay, during the pendency of the Merger, a dividend to Grace Stockholders consistent with its historical practice. On March 31, 2021, representatives of Wachtell Lipton sent an initial draft of the confidential disclosure schedules to the Merger Agreement to representatives of 40 North, including Sullivan & Cromwell.

Between the January 11 Proposal and April 1, 2021, 40 North continued to consider Grace’s strategic direction and 40 North’s investment in Grace. In late March, 40 North also considered additional initiatives that could be pursued as part of its consideration of the transaction in light of the pending March 31, 2021 expiration of the standstill restrictions in the 2021 Confidentiality Agreement. Such additional initiatives included the possibility of nominating two or three director candidates to the Board of Directors at Grace’s 2021 annual meeting of stockholders, undertaking a “withhold” campaign in connection with Grace’s 2021 annual meeting of stockholders, submitting a revised proposal to acquire Grace and the price at which such proposal might be submitted, and the possibility of submitting a “best and final offer.” As part of considering these additional initiatives, 40 North also considered the findings of its due diligence conducted under the terms of the 2021 Confidentiality Agreement.

On April 1, 2021, following the expiration of the standstill provisions of the 2021 Confidentiality Agreement entered into by the Company and 40 North on February 1, 2021, 40 North delivered another letter to the Board of Directors, which was also filed with the SEC as an exhibit to an amendment to the 13D, pursuant to which 40 North and its affiliated investment funds proposed to acquire the Company for $70.00 per share of Grace common stock in cash, subject to certain conditions (the “April 1 Proposal”). 40 North’s letter explained that the April 1 Proposal did not include any financing contingency, and that 40 North’s financing banks were Citi, J.P. Morgan, Deutsche Bank and BNP Paribas. In its letter, 40 North expressed its confidence that all necessary regulatory approvals could be received in a timely manner. 40 North noted that it had “engaged numerous advisers, consultants and specialists to further [its] analysis of the various facets of [the Company’s] business”

and explained that its proposal was “subject only to confirmatory diligence, which [40 North] expect[ed] to be able to complete in two weeks, and the execution of definitive documentation.” 40 North’s proposal letter characterized the April 1 Proposal as 40 North’s “best and final offer.”

Shortly thereafter on April 1, 2021, Mr. La Force sent a letter to Messrs. Millstone and Winter, the text of which was included in a press release issued by the Company. In this letter, Mr. La Force acknowledged the Company’s receipt of 40 North’s April 1 Proposal and reiterated the Company’s requests for the information described in the Company’s bid instruction letter provided to 40 North on March 25, 2021, including the details of 40 North’s debt and equity financing commitments, as well as any comments on the draft transaction documentation previously provided to 40 North.

On April 5, 2021, representatives of 40 North provided to representatives of the Company a revised draft of the Merger Agreement, as well as additional draft transaction documentation, including drafts of the Equity and Debt Commitment Letters and the Limited Guaranty. The delivery of the transaction documentation was confirmed by 40 North on April 6, 2021 in a letter from Messrs. Millstone and Winter to Mr. La Force, which letter was also filed with the SEC as an exhibit to an amendment to the 13D. 40 North’s revised draft of the Merger Agreement provided for, among other things, (1) a termination fee equal to 4.0% of the Company’s equity value payable by the Company upon a termination of the Merger Agreement under certain circumstances, (2) a reverse termination fee equal to 5.0% of the Company’s equity value payable by Parent upon a termination of the Merger Agreement under certain circumstances and (3) a requirement for the Company to obtain Parent’s consent prior to paying dividends to Grace Stockholders during the pendency of the Merger.

On April 6, 2021, representatives of Moelis met telephonically with the Chairman and Chief Executive Officer of Counterparty C to assess Counterparty C’s interest in re-engaging in discussions or submitting a proposal for a strategic transaction that might be competitive with 40 North’s April 1 Proposal. The Chairman and Chief Executive Officer of Counterparty C explained that a representative of Counterparty C would contact the Company or its representatives if it had an interest in re-engaging in discussions regarding a potential strategic transaction, but thereafter no such contact was made.

On April 7, 2021, a meeting of the Board of Directors was held, during which members of the Company’s senior management and representatives of Wachtell Lipton, Goldman Sachs and Moelis were present. At the meeting, the Board of Directors discussed the Company’s ongoing strategic review, including 40 North’s April 1 Proposal and preliminary financial analyses of the April 1 Proposal. The Board of Directors discussed that Counterparty C had neither demonstrated a willingness to compromise further on relative valuation nor engage in due diligence or other transaction discussions without an agreement on an upfront valuation that did not compare favorably to 40 North’s April 1 Proposal, as well as that Counterparty C had not expressed any interest in re-engaging in discussions. The Board of Directors also discussed the Company’s solicitation activity during its outreach to potential transaction counterparties and the fact that, despite the fact that it had been widely and publicly known for months that Grace was conducting a strategic review process and was engaged in discussions with 40 North, there had been no other indications of interest from other potential counterparties to a strategic business combination or sale transaction. Following the discussion, it was the consensus of the Board of Directors that the Company should proceed in discussions with 40 North on the basis of its April 1 Proposal, contingent on 40 North obtaining acceptable financing commitments and the negotiation of definitive transaction documentation with terms that would be protective of Grace Stockholders and customary for transactions of a similar type and size.

On April 9, 2021, representatives of Wachtell Lipton sent to representatives of Sullivan & Cromwell revised drafts of the Merger Agreement and related transaction and financing documentation. The revised draft of the Merger Agreement provided for, among other things, (1) a termination fee equal to 2.5% of the Company’s equity value payable by the Company upon a termination of the Merger Agreement under certain circumstances, (2) a reverse termination fee equal to 8.0% of the Company’s equity value payable by Parent upon a termination of the Merger Agreement under certain circumstances and (3) the right of the Company to continue to pay, during the pendency of the Merger, a dividend to Grace Stockholders consistent with its historical practice.

On April 14, 2021, at 40 North’s request in order for 40 North and its financing sources to complete their due diligence, the Company entered into an amendment to the 2021 Confidentiality Agreement with 40 North and certain of its affiliates, pursuant to which the Company agreed to extend the nomination deadline for

40 North to submit candidates for election to the Company’s Board of Directors at the Company’s 2021 annual meeting of stockholders to April 26, 2021. The Company and 40 North also agreed not to make any further public statements regarding the other party or the ongoing discussions between the parties prior to April 26, 2021.

Between April 14, 2021 and April 25, 2021, representatives of Wachtell Lipton exchanged drafts of the Merger Agreement and the other transaction documents with representatives of Sullivan & Cromwell and negotiated the terms of such documents.

On April 14, 2021, representatives of Sullivan & Cromwell sent to representatives of Wachtell Lipton a revised draft of the Merger Agreement that did not specify proposed termination fee or reverse termination fee amounts but provided for, among other things, a requirement for the Company to obtain Parent’s consent prior to paying dividends to Grace Stockholders during the pendency of the Merger.

On April 16, 2021, representatives of Wachtell Lipton sent to representatives of Sullivan & Cromwell a revised draft of the Merger Agreement that provided for, among other things, (1) a termination fee equal to 3.0% of the Company’s equity value payable by the Company upon a termination of the Merger Agreement under certain circumstances, (2) a reverse termination fee equal to 8.0% of the Company’s equity value payable by Parent upon a termination of the Merger Agreement under certain circumstances and (3) the right of the Company to continue to pay, during the pendency of the Merger, a dividend to Grace Stockholders consistent with its historical practice.

On April 22, 2021, representatives of Sullivan & Cromwell sent to representatives of Wachtell Lipton a revised draft of the Merger Agreement that did not specify proposed termination fee or reverse termination fee amounts but provided for, among other things, a requirement for the Company to obtain Parent’s consent prior to paying dividends to Grace Stockholders during the pendency of the Merger.

On April 24, 2021, representatives of Wachtell Lipton sent to representatives of Sullivan & Cromwell a revised draft of the Merger Agreement that provided for, among other things, (1) a termination fee equal to 3.0% of the Company’s equity value payable by the Company upon a termination of the Merger Agreement under certain circumstances, (2) a reverse termination fee equal to 6.0% of the Company’s equity value payable by Parent upon a termination of the Merger Agreement under certain circumstances and (3) the right of the Company to continue to pay, during the pendency of the Merger, a dividend to Grace Stockholders consistent with its historical practice.

Early in the morning of April 25, 2021, representatives of Sullivan & Cromwell sent to representatives of Wachtell Lipton a revised draft of the Merger Agreement that, consistent with the Company’s prior proposal, provided for, among other things, a termination fee equal to 3.0% of the Company’s equity value payable by the Company upon a termination of the Merger Agreement under certain circumstances and a reverse termination fee equal to 6.0% of the Company’s equity value payable by Parent upon a termination of the Merger Agreement under certain circumstances. The revised draft of the Merger Agreement also included a requirement for the Company to obtain Parent’s consent prior to paying dividends to Grace Stockholders during the pendency of the Merger.

On April 25, 2021, a meeting of the Board of Directors was held, during which members of the Company’s senior management and representatives of Wachtell Lipton, Goldman Sachs and Moelis were present. Mr. La Force presented to the other members of the Board of Directors an update on the negotiations with 40 North and Standard Industries Holdings regarding the proposed acquisition of the Company, including the terms of the draft transaction documentation. A representative of Wachtell Lipton described to the directors their fiduciary duties in connection with their consideration of the proposed transaction. Representatives of Goldman Sachs presented the financial analysis undertaken by Goldman Sachs regarding the proposed transaction, including by reference to presentation materials which had been made available to the Board of Directors prior to the meeting. After discussion among the Board of Directors and the Company’s advisors, Goldman Sachs delivered its oral opinion, subsequently confirmed by delivery of a written opinion, dated April 26, 2021, to the Board of Directors to the effect that, as of such date and based upon and subject to the various matters, limitations, qualifications and assumptions set forth therein, the Merger Consideration to be paid to the holders (other than Parent and its affiliates) of Grace common stock in the proposed transaction was fair, from a financial point of view, to such holders. Representatives of Moelis then presented the financial analysis undertaken by Moelis regarding the proposed transaction, including by reference to presentation materials which had been made available to the

Board of Directors prior to the meeting. After discussion among the Board of Directors and the advisors, Moelis rendered its oral opinion, to be subsequently confirmed by delivery of a written opinion, dated April 26, 2021, to the Board of Directors to the effect that, as of such date and based upon and subject to the assumptions made, procedures followed, matters considered and limitations on the review undertaken set forth therein, the Merger Consideration to be received by the holders of shares of Grace common stock (other than the Supporting Stockholder, Parent, Merger Sub, any other subsidiary of Parent, the Company or any other wholly owned subsidiary of the Company) in the Merger was fair from a financial point of view to such holders. Representatives of Wachtell Lipton reviewed the terms of the draft Merger Agreement and other transaction documentation, including by reference to a summary of the agreements and drafts of the agreements, which had been made available to the Board of Directors prior to the meeting. Following discussion among the Board of Directors, the members of the Company’s senior management and representatives of the Company’s advisors, the Board of Directors instructed Mr. La Force to engage with Messrs. Millstone and Winter and attempt to reach a compromise on the outstanding issues in the Merger Agreement. Following a series of adjournments while Mr. La Force engaged in further discussions with Messrs. Millstone and Winter, Mr. La Force and Messrs. Winter and Millstone agreed to a compromise. When the meeting was finally reconvened later in the evening of April 25, the Board of Directors then engaged in a general discussion of the potential transaction and the matters summarized for the Board of Directors at the meeting, including asking questions of the Company’s advisors and senior management. Following this discussion, and after carefully considering the proposed terms of the transaction, and taking into consideration the matters discussed during the meeting and prior meetings of the Board of Directors, the Board of Directors, on behalf of Grace, unanimously (i) determined that the Merger Agreement, the Merger and the other transactions contemplated by the Merger Agreement are advisable, fair to and in the best interests of Grace and its stockholders (including unaffiliated security holders); (ii) approved the execution, delivery and performance of the Merger Agreement by the Company and the consummation of the transactions contemplated by the Merger Agreement; and (iii) resolved to recommend that Grace Stockholders (including unaffiliated security holders) approve the adoption of the Merger Agreement and the consummation of the transactions contemplated thereby.

Early in the morning of April 26, 2021, the parties executed and delivered the Merger Agreement, Voting Agreement, Equity Commitment Letter, Limited Guaranty and Debt Commitment Letter. Shortly thereafter, the parties issued a press release announcing the transaction.

The Board of Directors, on behalf of Grace, has unanimously: (i) determined that the Merger Agreement, the Merger and the other transactions contemplated by the Merger Agreement are advisable, fair to and in the best interests of Grace and its stockholders (including unaffiliated security holders); (ii) approved the execution, delivery and performance of the Merger Agreement by Grace and the consummation of the transactions contemplated by the Merger Agreement; and (iii) resolved to recommend that Grace Stockholders (including unaffiliated security holders) approve the adoption of the Merger Agreement and the consummation of the transactions contemplated thereby.

The Board of Directors, on behalf of Grace, unanimously recommends that you vote: (1) “FOR” the adoption of the Merger Agreement; (2) “FOR,” on an advisory (non-binding) basis, the Compensation Proposal; and (3) “FOR” the Adjournment Proposal.

In the course of reaching its determination and recommendation, the Board of Directors consulted with Grace management, Wachtell Lipton, Goldman Sachs and Moelis. The Board of Directors considered a number of factors, including those below (which are not listed in any relative order of importance), all of which it viewed as generally supporting its (i) approval of the execution, delivery and performance of the Merger Agreement by Grace and the consummation of the transactions contemplated by the Merger Agreement; and (ii) resolution to recommend, on behalf of Grace, that Grace Stockholders (including unaffiliated security holders) approve the adoption of the Merger Agreement and the consummation of the transactions contemplated thereby:

The Board of Directors believes that sufficient procedural safeguards were and are present to ensure the fairness of the Merger and to permit the Board of Directors to represent effectively the interests of the unaffiliated Grace Stockholders, and in light of such procedural safeguards the Board of Directors did not consider it necessary to retain an unaffiliated representative to act solely on behalf of our unaffiliated security holders for purposes of negotiating the terms of the Merger Agreement or preparing a report concerning the fairness of the Merger Agreement and the Merger. These procedural safeguards include the following:

The Board of Directors also considered a number of uncertainties and risks concerning the Merger, including the following (which factors are not necessarily presented in order of relative importance):

The Board of Directors concluded that the uncertainties, risks and potentially negative factors relevant to the Merger were outweighed by the potential benefits of the Merger. The Board of Directors also concluded that approval by a majority of the unaffiliated Grace Stockholders is not necessary for approval of the Merger, as such approval is not required by Delaware law and various safeguards and protective steps have been adopted to ensure the procedural fairness of the transactions contemplated by the Merger Agreement, including the Merger, including the procedural safeguards discussed above.

In the course of reaching its decision to approve and declare advisable the Merger Agreement and the transactions contemplated thereby, including the Merger, the Board of Directors did not consider the liquidation value of Grace, and did not believe it to be a relevant methodology, because (i) it considered Grace to be a viable, going concern, (ii) it believes that liquidation sales generally result in proceeds substantially less than sales of going concerns, (iii) it considered determining a liquidation value to be impracticable given the significant execution risk involved in any breakup of Grace, and (iv) Grace will continue to operate its business following the Merger. Further, the Board of Directors did not consider net book value, which is an accounting concept, as a factor, because it believed that net book value is not a material indicator of the value of Grace as a going concern but rather is indicative of historical costs and because net book value does not take into account the prospects of Grace, market conditions, trends in the industry in which Grace operates or the business risks inherent in that industry. The Board of Directors did not seek to establish a pre-Merger going concern value for Grace, and therefore no such value was considered by the Board of Directors in making its fairness determination on behalf of Grace. Rather, the Board of Directors believed that the financial analyses presented by Goldman Sachs and Moelis, as more fully summarized in the sections of this proxy statement captioned “Special Factors—Opinion of Goldman Sachs & Co. LLC” and “Special Factors—Opinion of Moelis & Company LLC” on which the Board of Directors relied, were indicative of going concern values for Grace as it continues to operate its business. The Board of Directors further believes that the trading price of the Grace common stock at any given time represents the best available indicator of Grace’s going concern value at that time so long as the trading price at that time is not impacted by speculation regarding the likelihood of a potential transaction. In addition, other than as described in the section of the proxy statement captioned “Special Factors—Background

of the Merger,” the Board of Directors was not aware of any firm offer for a merger, sale of all or a substantial part of Grace’s assets, or a purchase of a controlling amount of Grace securities having been received by Grace from anyone other than 40 North in the two years preceding the signing of the Merger Agreement.

The Board of Directors adopted the opinions and analyses provided by Goldman Sachs and Moelis, as more fully summarized in the sections of this proxy statement captioned “Special Factors—Opinion of Goldman Sachs & Co. LLC” and “Special Factors—Opinion of Moelis & Company LLC.” Although the reference to Grace’s stockholders in both the opinions of Goldman Sachs and Moelis did not exclude Grace’s directors and officers (but did exclude, in the case of the opinion of Goldman Sachs, Parent and its affiliates, and in the case of Moelis, the Supporting Stockholder, Parent, Merger Sub and any other subsidiary of Parent) notwithstanding that such persons are deemed affiliates of Grace, such reference did not affect the Board of Directors’ determination in respect of the Merger Agreement and the transactions contemplated thereby, including the Merger, because such directors and officers will receive the same Merger Consideration as unaffiliated Grace Stockholders, subject to the terms and conditions set forth in this proxy statement.

The foregoing discussion of reasons for the recommendation to approve the adoption of the Merger Agreement is not meant to be exhaustive but addresses the material information and factors considered by the Board of Directors in consideration of its determination that the Merger is fair to the Grace Stockholders (including unaffiliated security holders) and its recommendation. In view of the wide variety of factors considered by the Board of Directors in connection with its evaluation of the Merger and the complexity of these matters, the Board of Directors did not find it practicable to, and did not, quantify or otherwise assign relative weights to the specific factors considered in reaching its determination and recommendation. Rather, in considering the information and factors described above, individual members of the Board of Directors each applied his or her own personal business judgment to the process and may have given differing weights to differing factors.

The Board of Directors based its unanimous recommendation on the totality of the information presented. The explanation of the factors and reasoning set forth above contain forward-looking statements that should be read in conjunction with the section of this proxy statement captioned “Forward-Looking Statements.”

Under the SEC’s rules governing “going-private” transactions, including Rule 13e-3 under the Exchange Act, the Purchaser Filing Persons are required to provide certain information regarding their position as to the substantive and procedural fairness of the Merger to Grace’s unaffiliated security holders. Each of the Purchaser Filing Persons is making the statements included in this part of the proxy statement solely for the purpose of conforming with the requirements of Rule 13e-3 and related rules under the Exchange Act. The views of the Purchaser Filing Persons should not be construed as a recommendation to any unaffiliated security holder of Grace as to how that security holder should vote on the proposal to adopt the Merger Agreement or any other proposal considered at the Special Meeting.

The Purchaser Filing Persons did not participate in the deliberations of the Board of Directors regarding, and did not receive advice from the Board of Directors’ legal or financial advisors as to, the fairness of the Merger. The Purchaser Filing Persons have not performed, or engaged a financial advisor to perform, any valuation or other analysis for the purpose of assessing the fairness of the Merger to Grace’s unaffiliated security holders. However, based on the knowledge and analysis by the Purchaser Filing Persons of available information regarding Grace, and the factors considered by, and the analysis and resulting conclusions of, the Purchaser Filing Persons discussed in “—Purpose and Reasons of the Purchaser Filing Persons for the Merger,” as well as the factors considered by, and the analysis and resulting conclusions of, the Board of Directors discussed in “—Purpose and Reasons of Grace for the Merger,” the Purchaser Filing Persons believe that the Merger is substantively and procedurally fair to Grace’s unaffiliated security holders.

In particular, the Purchaser Filing Persons believe that the Merger is both procedurally and substantively fair to Grace’s unaffiliated security holders based on their consideration of the following factors, among others, which are not presented in any relative order of importance:

The Purchaser Filing Persons did not find it practicable to assign, nor did they assign, specific relative weights to the individual factors considered in reaching their conclusion as to fairness. The Purchaser Filing Persons also did not consider the liquidation value of Grace’s assets, and did not perform a liquidation analysis, because they consider Grace to be a viable going concern. Therefore, no appraisal of liquidation value was sought for purposes of valuing the shares of Grace’s common stock, and the Purchaser Filing Persons believe that the liquidation value of the shares of Grace’s common stock is irrelevant to a determination as to whether the proposed Merger is fair to Grace’s unaffiliated security holders.

Goldman Sachs rendered its opinion to the Board of Directors that, as of April 26, 2021 and based upon and subject to the factors and assumptions set forth therein, the Merger Consideration to be paid to the holders (other than Parent and its affiliates) of Grace common stock pursuant to the Merger Agreement was fair from a financial point of view to such holders.

The full text of the written opinion of Goldman Sachs, dated April 26, 2021, which sets forth assumptions made, procedures followed, matters considered and limitations on the review undertaken in connection with the opinion, is attached as Annex B to this proxy statement. The summary of Goldman Sachs’ opinion contained in this proxy statement is qualified in its entirety by reference to the full text of Goldman Sachs’ written opinion. Goldman Sachs provided advisory services and its opinion for the information and assistance of the Board of Directors in connection with its consideration of the Merger. The Goldman Sachs opinion is not a recommendation as to how any holder of Grace common stock should vote with respect to the Merger or any other matter.

In connection with rendering the opinion described above and performing its related financial analyses, Goldman Sachs reviewed, among other things:

Goldman Sachs also held discussions with members of the senior management of Grace regarding their assessment of the past and current business operations, financial condition and future prospects of Grace; reviewed the reported price and trading activity for the Grace common stock; compared certain financial and stock market information for Grace with similar information for certain other companies the securities of which are publicly traded; reviewed the financial terms of certain recent business combinations in the chemicals industry and in other industries; and performed such other studies and analyses, and considered such other factors, as it deemed appropriate.

For purposes of rendering this opinion, Goldman Sachs, with Grace’s consent, relied upon and assumed the accuracy and completeness of all of the financial, legal, regulatory, tax, accounting and other information provided to, discussed with or reviewed by, it, without assuming any responsibility for independent verification thereof. In that regard, Goldman Sachs assumed with Grace’s consent that the Management Projections (as defined in the section of this proxy statement captioned “—Management Projections”) were reasonably prepared on a basis reflecting the best currently available estimates and judgments of the management of Grace. Goldman Sachs did not make an independent evaluation or appraisal of the assets and liabilities (including any contingent, derivative or other off-balance-sheet assets and liabilities) of Grace or any of its subsidiaries and Goldman Sachs was not furnished with any such evaluation or appraisal. Goldman Sachs assumed that all governmental, regulatory or other consents and approvals necessary for the consummation of the Merger will be obtained without any adverse effect on the expected benefits of the Merger in any way meaningful to its analysis. Goldman Sachs has also assumed that the Merger will be consummated on the terms set forth in the Merger Agreement, without the waiver or modification of any term or condition the effect of which would be in any way meaningful to its analysis.

Goldman Sachs’ opinion does not address the underlying business decision of Grace to engage in the Merger or the relative merits of the Merger as compared to any strategic alternatives that may be available to Grace, nor does it address any legal, regulatory, tax or accounting matters. Goldman Sachs’ opinion addresses only the fairness from a financial point of view to the holders (other than Parent and its affiliates) of Grace common stock, as of the date of the opinion, of the Merger Consideration to be paid to such holders pursuant to the Merger Agreement. Goldman Sachs’ opinion does not express any view on, and does not address, any other term or aspect of the Merger Agreement or the Merger or any term or aspect of any other agreement or instrument contemplated by the Merger Agreement or entered into or amended in connection with the Merger, including the fairness of the Merger to, or any consideration received in connection therewith by, the holders of any other class of securities, creditors, or other constituencies of Grace, nor as to the fairness of the amount or

nature of any compensation to be paid or payable to any of the officers, directors or employees of Grace, or class of such persons in connection with the transaction, whether relative to the Merger Consideration to be paid to the holders (other than Parent and its affiliates) of Grace common stock pursuant to the Merger Agreement or otherwise. Goldman Sachs’ opinion was necessarily based on economic, monetary, market and other conditions as in effect on, and the information made available to it as of, the date of the opinion, and Goldman Sachs assumed no responsibility for updating, revising or reaffirming its opinion based on circumstances, developments or events occurring after the date of its opinion. In addition, Goldman Sachs does not express any opinion as to the prices at which shares of Grace common stock trade at any time, as to the potential effects of volatility in the credit, financial and stock markets on Grace, Parent or the Merger, or as to the impact of the Merger on the solvency or viability of Grace or Parent or the ability of Grace or Parent to pay their respective obligations when they come due. Goldman Sachs’ opinion was approved by a fairness committee of Goldman Sachs.

The following is a summary of the material financial analyses delivered by Goldman Sachs to the Board of Directors in connection with rendering the opinion described above. The order of the analyses described does not represent the relative importance or weight given to those analyses by Goldman Sachs. Some of the summaries of the financial analyses include information presented in tabular format. The tables must be read together with the full text of each summary and are alone not a complete description of Goldman Sachs’ financial analyses. Except as otherwise noted, the following quantitative information, to the extent that it is based on market data, is based on market data as it existed on or before April 23, 2021, the last trading day before the public announcement of the Merger, and is not necessarily indicative of current market conditions.

Historical Stock Trading Analysis. Goldman Sachs analyzed the $70.00 in cash per share to be paid to holders of Grace common stock (other than Excluded Shares) pursuant to the Merger Agreement in relation to:

In addition, Goldman Sachs calculated the average stock price performance for the following selected companies (i) after November 6, 2020 through April 23, 2021 and (ii) after October 13, 2020, the last trading day before Kathleen Reiland, the director on the Board of Directors employed and designated by 40 North, announced her resignation from the Board of Directors, through April 23, 2021, and then applied these average performances to the closing price per share of Grace common stock on November 6, 2020 and October 13, 2020, respectively, to derive what are referred to in this proxy statement, for November 6, 2020 or October 13, 2020, as the case may be, as the “hypothetical undisturbed stock price” from such date. The selected companies used in this calculation were:

Although none of these selected companies is directly comparable to Grace, the companies included were chosen because they are publicly traded companies with operations that for purposes of analysis may be considered similar to certain operations of Grace.

This analysis indicated that the $70.00 in cash per share to be paid to the holders of Grace common stock pursuant to the Merger Agreement represented:

Illustrative Discounted Cash Flow Analysis. Using the Management Projections, Goldman Sachs performed an illustrative discounted cash flow analysis on Grace. Using discount rates ranging from 8.0% to 9.0%, reflecting estimates of Grace’s weighted average cost of capital, Goldman Sachs discounted to present value as of December 31, 2020 (i) estimates of unlevered free cash flow for Grace for the years 2021 through 2025 derived from the Management Projections and (ii) a range of illustrative terminal values for Grace, which were calculated by applying exit terminal year multiples ranging from 9.5x to 11.5x, to an estimate of Grace’s earnings before interest, taxes, depreciation and amortization (“EBITDA”) for the terminal year, as reflected in the Management Projections (which analysis implied a perpetuity growth rate ranging from 2.0% to 3.9%). Goldman Sachs derived such discount rates by application of the Capital Asset Pricing Model, which requires certain company-specific inputs, including Grace’s target capital structure weightings, the cost of long-term debt, after-tax yield on permanent excess cash, if any, future applicable marginal cash tax rate and a beta for Grace, as well as certain financial metrics for the United States financial markets generally. The illustrative terminal value to EBITDA multiple range was derived by Goldman Sachs using its professional judgment and taking into account, among other things, the Management Projections and EBITDA multiples implied by the historical trading prices of the Grace common stock. Goldman Sachs derived ranges of illustrative enterprise values for Grace by adding the ranges of present values it derived above. Goldman Sachs then subtracted, from the range of illustrative enterprise values it derived for Grace, the net debt of Grace, as of December 31, 2020 and adjusted to give effect on a pro forma basis to the pending acquisition by Grace of the FCS business announced in February 2021, as provided by the management of Grace, to derive a range of illustrative equity values for

Grace. Goldman Sachs then determined the net present value of tax attributes of Grace, as reflected in the Management Projections and excluded from the foregoing calculations, by applying a discount rate of 8.5%, representing the midpoint of the range of discount rates described above, to the value of these tax attributes and added these tax attributes to the range of illustrative equity values of Grace to derive a range of illustrative equity values that included an illustrative value for the tax attributes. Goldman Sachs then divided the range of illustrative equity values it derived including the tax attributes and excluding the tax attributes, respectively, by the number of fully diluted outstanding shares of Grace, as provided by the management of Grace, to derive a range of illustrative present values per share (including the tax attributes) ranging from $69.20 to $89.70 and a range of illustrative present values per share (excluding the tax attributes) ranging from $61.62 to $82.21.

Illustrative Present Value of Future Share Price Analysis. Goldman Sachs performed an illustrative analysis of the implied present value of an illustrative future value per share of Grace common stock, which is designed to provide an indication of the present value of a theoretical future value of a company’s equity as a function of such company’s financial multiples. For this analysis, Goldman Sachs used the Management Projections for each of the fiscal years 2022 through 2025. Goldman Sachs first calculated the implied enterprise value (“EV”) of Grace as of December 31 for each of the fiscal years 2021 to 2024, by multiplying the one-year forward EBITDA (“NTM EBITDA”) as of such date by an illustrative range of multiples of 9.0x to 11.0x. These illustrative multiple estimates were derived by Goldman Sachs utilizing its professional judgment and experience, taking into account current and historical trading data and EV/NTM EBITDA multiples for Grace. To derive illustrative implied equity values per share of Grace common stock, Goldman Sachs then subtracted the amount of Grace’s projected net debt as of December 31 for each of the fiscal years 2021 to 2024, as provided by the management of Grace, to determine implied equity values per share of Grace common stock as of December 31 for each of the fiscal years 2021 to 2024. Goldman Sachs then discounted these implied equity values per share to December 31, 2020 using a discount rate of 10.13%, reflecting an estimate of Grace’s cost of equity. Goldman Sachs derived such discount rate by application of the Capital Asset Pricing Model, which requires certain company-specific inputs, including a beta for Grace, as well as certain financial metrics for the United States financial markets generally. Goldman Sachs then added to such implied present values the aggregate dividends per share of Grace common stock estimated to be paid by Grace for each of the fiscal years 2021 to 2014 in the Management Projections, and as discounted to December 31, 2020 using a discount rate of 10.13%, reflecting an estimate of Grace’s cost of equity. These analyses resulted in a range of implied present values of $58.17 to $87.08 per share of Grace common stock.

Selected Transactions Analysis. Goldman Sachs analyzed certain publicly available information relating to the following selected transactions in the chemicals industry since 2015:

While none of the companies that participated in the selected transactions are directly comparable to Grace, the target companies in the selected transactions are companies with operations that, for the purposes of analysis, may be considered similar to certain of Grace’s results, market size and product profile. For each of the selected transactions, Goldman Sachs calculated the implied enterprise value of the applicable target company based on the consideration paid in the applicable transaction, as a multiple of the estimated EBITDA of the target company for the last 12-month period ended prior to announcement of each applicable transaction (“LTM EBITDA”), as disclosed in public company filings and other publicly available information.

The following table presents the results of this analysis:

Goldman Sachs then applied a range of multiples of 9.2x to 16.5x, derived from this analysis, to the estimated 2021 EBITDA for Grace, as reflected in the Management Projections, to derive an illustrative range of enterprise values for Grace. Goldman Sachs then subtracted, from the range of illustrative enterprise values it derived for Grace, the net debt of Grace, as of December 31, 2020 and adjusted to give effect on a pro forma basis to the pending acquisition by Grace of the FCS business announced in February 2021, as provided by the management of Grace, to derive a range of illustrative equity values for Grace. Goldman Sachs then divided the range of illustrative equity values it derived by the number of fully diluted outstanding shares of Grace, as provided by the management of Grace, to derive a range of illustrative values per share ranging from $48.66 to $114.22.

Premia Analysis. Goldman Sachs reviewed and analyzed, using publicly available information, the acquisition premia for all-cash acquisition transactions announced during the time period from 2016 through April 23, 2021 involving a public company based in the United States as the target where the disclosed enterprise values for the transaction were between $5.0 billion and $10 billion. For the entire period, using publicly available information, Goldman Sachs calculated the median, 25^th percentile and 75^th percentile premiums of the price paid in the transactions relative to the target’s stock price four weeks prior to the announcement of the transaction. This analysis indicated a median premium of 34.1% across the period. This analysis also indicated a 25^th percentile premium of 20.8% and 75^th percentile premium of 41.4% across the period. Using this analysis, Goldman Sachs applied a reference range of illustrative premiums of 20.8% to 41.4% to the undisturbed closing price per share of Grace common stock of $44.05 as of November 6, 2020 (the last trading day before the first public announcement of a proposal by 40 North to acquire Grace) and calculated a

range of implied equity values per share of Grace common stock of $53.21 to $62.29. In addition, Goldman Sachs applied a reference range of illustrative premiums of 20.8% to 41.4% to the hypothetical undisturbed stock price from November 6, 2020 of $58.77 and calculated a range of implied equity values per share of Grace common stock of $70.99 to $83.10.

The preparation of a fairness opinion is a complex process and is not necessarily susceptible to partial analysis or summary description. Selecting portions of the analyses or of the summary set forth above, without considering the analyses as a whole, could create an incomplete view of the processes underlying Goldman Sachs’ opinion. In arriving at its fairness determination, Goldman Sachs considered the results of all of its analyses and did not attribute any particular weight to any factor or analysis considered by it. Rather, Goldman Sachs made its determination as to fairness on the basis of its experience and professional judgment after considering the results of all of its analyses. No company or transaction used in the above analyses as a comparison is directly comparable to Grace or Parent or the contemplated transaction.

Goldman Sachs prepared these analyses for purposes of Goldman Sachs’ providing its opinion to the Board of Directors as to the fairness from a financial point of view of the Merger Consideration to be paid to the holders (other than Parent and its affiliates) of Grace common stock pursuant to the Merger Agreement. These analyses do not purport to be appraisals nor do they necessarily reflect the prices at which businesses or securities actually may be sold. Analyses based upon forecasts of future results are not necessarily indicative of actual future results, which may be significantly more or less favorable than suggested by these analyses. Because these analyses are inherently subject to uncertainty, being based upon numerous factors or events beyond the control of the parties or their respective advisors, none of Grace, Parent, Goldman Sachs or any other person assumes responsibility if future results are materially different from those forecast.

The Merger Consideration was determined through arm’s-length negotiations between Grace and Parent and was approved by the Board of Directors. Goldman Sachs provided advice to Grace during these negotiations. Goldman Sachs did not, however, recommend any specific amount of consideration to Grace or the Board of Directors or that any specific amount of consideration constituted the only appropriate consideration for the Merger.

As described above, Goldman Sachs’ opinion to the Board of Directors was one of many factors taken into consideration by the Board of Directors in making its determination to approve the Merger Agreement. The foregoing summary does not purport to be a complete description of the analyses performed by Goldman Sachs in connection with the fairness opinion and is qualified in its entirety by reference to the written opinion of Goldman Sachs attached as Annex B to this proxy statement.

Goldman Sachs and its affiliates are engaged in advisory, underwriting and financing, principal investing, sales and trading, research, investment management and other financial and non-financial activities and services for various persons and entities. Goldman Sachs and its affiliates and employees, and funds or other entities they manage or in which they invest or have other economic interests or with which they co-invest, may at any time purchase, sell, hold or vote long or short positions and investments in securities, derivatives, loans, commodities, currencies, credit default swaps and other financial instruments of Grace, Parent, any of their respective affiliates and third parties, including 40 North, and its respective affiliates and portfolio companies, or any currency or commodity that may be involved in the Merger. Goldman Sachs acted as financial advisor to Grace in connection with, and participated in certain of the negotiations leading to, the Merger. Goldman Sachs has provided certain financial advisory and/or underwriting services to Grace and/or its affiliates from time to time for which the Investment Banking Division of Goldman Sachs has received, and may receive, compensation, including having acted as bookrunner with respect to Grace’s 4.875% Senior Notes due 2027 (aggregate principal amount $750,000,000) in June 2020, Grace’s financial advisor in connection with Grace’s agreement to acquire the FCS business from Albemarle Corporation in February 2021 and as sole arranger with respect to Grace’s Senior Secured Term Loan B-3 due March 2028 (aggregate principal amount $300,000,000) in March 2021. During the two year period ended April 26, 2021, Goldman Sachs has recognized compensation for financial advisory and/or underwriting services provided by its Investment Banking Division to Grace and/or its affiliates of approximately $1,000,000. Goldman Sachs may also in the future provide financial advisory and/or underwriting services to Grace, Parent and 40 North and their respective affiliates and, as applicable, portfolio companies for which the Investment Banking Division of Goldman Sachs may receive compensation. Affiliates of Goldman Sachs also may have co-invested with 40 North and its affiliates from time to time and may have invested in limited partnership units of affiliates of 40 North from time to time and may do so in the future.

The Board of Directors selected Goldman Sachs as its financial advisor because it is an internationally recognized investment banking firm that has substantial experience in transactions similar to the Merger. Pursuant to a letter agreement dated March 22, 2021, Grace engaged Goldman Sachs to act as its financial advisor in connection with the Merger. Pursuant to this engagement letter, Grace has agreed to pay Goldman Sachs a $5,000,000 quarterly fee for financial advisory services from and after the fourth quarter of 2020 of up to an aggregate of $25,000,000 (the “Financial Advisory Fee”). This engagement letter also provides for a transaction fee, based on the information available as of the date of announcement of the Merger, of approximately $48,700,000, all of which is contingent upon consummation of the Merger (the “Transaction Fee”). Any Financial Advisory Fee that Grace has already paid to Goldman Sachs will reduce the subsequent Transaction Fee. No Financial Advisory Fee will be due to Goldman Sachs after the payment of the Transaction Fee. In addition, Grace has agreed to reimburse Goldman Sachs for certain of its expenses, including attorneys’ fees and disbursements, and to indemnify Goldman Sachs and related persons against various liabilities, including certain liabilities under the federal securities laws.

Goldman Sachs made a written and oral presentation to certain members of Grace management on April 1, 2021, which provided a preliminary analysis of Grace’s hypothetical undisturbed share price and the implied premiums of 40 North’s $70 per share offer. A copy of such written presentation by Goldman Sachs has been attached as Exhibit (c)(3) to the Schedule 13E-3 filed in connection with the Merger.

Goldman Sachs made a written and oral presentation to the Board of Directors and certain members of Grace management on April 7, 2021, which reviewed a summary of the bids from 40 North and the context of 40 North’s bids in light of market data, including historical share prices, trading multiples, and research analyst coverage. Goldman Sachs also reviewed the Management Projections and provided certain preliminary financial analyses regarding Grace including: (i) illustrative discounted cash flow analyses, (ii) illustrative present value of future share price analyses, (iii) a leveraged buyout analysis, (iv) precedent transactions analyses, (v) analyses of premia paid in precedent transactions, (vi) a historical trading range review, (vii) a review of research analyst price targets and (viii) public comparables analyses. A copy of such written presentation by Goldman Sachs has been attached as Exhibit (c)(4) to the Schedule 13E-3 filed in connection with the Merger.

The financial analyses in such written and oral presentations were based on market, economic and other conditions as they existed as of the date of such presentations as well as other information that was available at such time. Goldman Sachs continued to refine various aspects of these preliminary financial analyses over time in advance of the presentation to the Board on April 25, 2021, which is summarized above. A copy of the April 25, 2021 presentation has been attached as Exhibit (c)(5) to the Schedule 13E-3 filed in connection with the Merger.

At a meeting of the Board of Directors held on April 25, 2021 to evaluate and approve the Merger, Moelis rendered its oral opinion to the Board of Directors, confirmed by the delivery of a written opinion dated April 26, 2021, addressed to the Board of Directors to the effect that, as of the date of such opinion and based upon and subject to the assumptions made, procedures followed, matters considered and limitations on the review undertaken, the Merger Consideration to be received in the Merger by the holders of the Grace common stock (other than the Supporting Stockholder, Parent, Merger Sub, any other subsidiary of Parent, Grace or any wholly owned subsidiary of Grace) was fair, from a financial point of view, to such holders.

The full text of Moelis’ written opinion dated April 26, 2021, which sets forth the assumptions made, procedures followed, matters considered and limitations on the review undertaken in connection with the opinion, is attached as Annex C to this proxy statement and is incorporated herein by reference. Moelis’ opinion was provided for the use and benefit of the Board of Directors (solely in its capacity as such) in its evaluation of the Merger. Moelis’ opinion is limited solely to the fairness, from a financial point of view, of the Merger Consideration to be received by the holders of the Grace common stock (other than the Supporting Stockholder, Parent, Merger Sub, any other subsidiary of Parent, Grace or any wholly owned subsidiary of Grace) in the Merger and does not address Grace’s underlying business decision to effect the Merger or the relative merits of the Merger as compared to any alternative business strategies or transactions that might be available to Grace. Moelis’ opinion does not constitute a recommendation as to

how any holder of securities should vote or act with respect to the Merger or any other matter. Moelis’ opinion was approved by a Moelis fairness opinion committee.

In arriving at its opinion, Moelis, among other things:

In connection with its review, with the consent of the Board of Directors, Moelis relied on the information supplied to, discussed with or reviewed by it for purposes of its opinion being complete and accurate in all material respects. Moelis did not assume any responsibility for independent verification of, and did not independently verify, any of such information. With the consent of the Board of Directors, Moelis relied upon, without independent verification, the assessment of Grace and its legal, tax, regulatory and accounting advisors with respect to legal, tax, regulatory and accounting matters. With respect to the Management Projections (as defined in the section of this proxy statement captioned “—Management Projections”), Moelis assumed, at the direction of the Board of Directors, that they were reasonably prepared on a basis reflecting the best currently available estimates and judgments of Grace’s management as to the future performance of Grace. Moelis expressed no views as to the reasonableness of the Management Projections and other financial forecasts or the assumptions on which they were based. In addition, with the consent of the Board of Directors, Moelis did not make any independent evaluation or appraisal of any of the assets or liabilities (contingent, derivative, off-balance-sheet, or otherwise) of Grace, nor was Moelis furnished with any such evaluation or appraisal.

Moelis’ opinion did not address Grace’s underlying business decision to effect the Merger or the relative merits of the Merger as compared to any alternative business strategies or transactions that might be available to Grace and did not address any legal, regulatory, tax or accounting matters. At the direction of the Board of Directors, Moelis was not asked to, nor did it, offer any opinion as to any terms of the Merger Agreement or any aspect or implication of the Merger, except for the fairness of the Merger Consideration from a financial point of view to the holders of the Grace common stock (other than the Supporting Stockholder, Parent, Merger Sub, any other subsidiary of Parent, Grace or any wholly owned subsidiary of Grace). Moelis did not express any opinion as to fair value or the solvency of Grace following the closing of the Merger. In addition, Moelis noted that, pursuant to the Merger Agreement, the Excluded Shares will not be converted into the right to receive the Merger Consideration, and Moelis expressed no opinion with respect to such shares or as to the fairness of the Merger Consideration to holders thereof. In rendering its opinion, Moelis assumed, with the consent of the Board of Directors, that the final executed form of the Merger Agreement would not differ in any material respect from

the draft that Moelis reviewed, that the Merger would be consummated in accordance with its terms without any waiver or modification that could be material to Moelis’ analysis, and that the parties to the Merger Agreement would comply with all the material terms of the Merger Agreement. Moelis assumed, with the consent of the Board of Directors, that all governmental, regulatory or other consents or approvals necessary for the completion of the Merger would be obtained, except to the extent that could not be material to Moelis’ analysis.

Moelis’ opinion was necessarily based on economic, monetary, market and other conditions as in effect on, and the information made available to Moelis as of, the date of its opinion, and Moelis assumed no responsibility to update its opinion for developments after the date of its opinion.

Moelis’ opinion did not address the fairness of the Merger or any aspect or implication of the Merger to, or any other consideration of or relating to, the holders of any class of securities, creditors or other constituencies of Grace, other than the fairness of the Merger Consideration from a financial point of view to the holders of the Grace common stock (other than the Supporting Stockholder, Parent, Merger Sub, any other subsidiary of Parent, Grace or any wholly owned subsidiary of Grace). In addition, Moelis did not express any opinion as to the fairness of the amount or nature of any compensation to be received by any officers, directors or employees of any parties to the Merger, or any class of such persons, relative to the Merger Consideration or otherwise. Moelis’ opinion was approved by a Moelis fairness opinion committee.

The following is a summary of the material financial analyses prepared by Moelis for the Board of Directors in connection with rendering its written opinion, dated April 26, 2021. The complete written presentation delivered to the Board of Directors in connection with the meeting, which we refer to as the “fairness presentation,” has been filed as an exhibit to the Schedule 13E-3 filed with the SEC in connection with the Merger, will be made available for inspection and copying at the principal executive offices of Grace during its regular business hours by any interested holder of common stock, and may be obtained by requesting it in writing from Grace at the address described in the section captioned “Where You Can Find More Information.” Moelis provided this presentation for the use and benefit of the Board of Directors (in its capacity as such) in its evaluation of the Merger.

Some of the summaries of financial analyses below include information presented in tabular format. In order to fully understand Moelis’ analyses, the tables must be read together with the text of each summary. The tables alone do not constitute a complete description of the analyses. Considering the data described below without considering the full narrative description of the financial analyses, including the methodologies and assumptions underlying the analyses, could create a misleading or incomplete view of Moelis’ analyses.

Unless the context indicates otherwise, stock prices (i) with respect to Grace, are based on the closing stock price of Grace common stock on April 23, 2021 and March 31, 2021 (which Moelis deemed to be the unaffected trading date for purposes of its analyses) and (ii) with respect to other companies, are also based on closing stock prices on April 23, 2021. For purposes of, among other things, deriving per share implied equity values for Grace, Moelis calculated certain per share amounts for Grace based on diluted shares outstanding as of April 22, 2021 provided by Grace management and approved for use by Moelis in rendering its opinion. For purposes of Moelis’ analyses, Moelis also used Grace management’s projected December 31, 2020 balance sheet, as set forth in the Management Projections and provided as of January 27, 2021, which management confirmed on April 24, 2021 was unchanged.

For purposes of its analyses, Moelis reviewed a number of financial metrics, including the following:

Unless the context indicates otherwise, (i) the estimates of the future financial performance for the selected publicly traded companies listed below were based on certain publicly available research analyst estimates for those companies, and (ii) the estimates of the future financial performance of Grace relied upon for the financial analyses described below were based on the Management Projections.

Moelis reviewed financial and stock market information of the selected publicly traded companies noted below that manufacture specialty chemicals and catalysts on a global basis serving a broad range of transportation, industrial and consumer applications and other specialty chemical companies with similar growth trajectory, financial profile and technological expertise and deemed generally relevant by Moelis in certain respects to Grace. Moelis excluded companies that primarily manufacture commodity chemicals due to the significant differences in business models, go-to-market strategies, competitive dynamics and margin profile compared to Grace.

Moelis reviewed, among other things, the EV of the selected publicly traded companies as a multiple of estimated Adjusted EBITDA for calendar year 2021 and estimated Adjusted EBITDA for calendar year 2022. Financial data for the selected publicly traded companies were based on publicly available median consensus research analyst estimates and public filings. In the case of estimated Adjusted EBITDA for Grace, Moelis reviewed both median consensus research analyst estimates and the Management Projections.

The selected publicly traded companies used in this analysis and their implied trading values to estimated Adjusted EBITDA for calendar year 2021 and estimated Adjusted EBITDA for calendar year 2022 multiples are summarized in the following table:

In reviewing the characteristics of the selected publicly traded companies for purposes of selecting its reference ranges to apply to Grace’s estimated financial metrics, Moelis noted that the low-end of its reference ranges was informed by Grace’s unaffected trading metrics. Since the three public proposals by 40 North to acquire Grace, Grace had experienced significant share price outperformance relative to the selected publicly traded companies. Moelis deemed the unaffected trading date for these purposes to be March 31, 2021, which was one day prior to 40 North’s “best and final” $70.00 per share cash offer made publicly. Moelis also noted that the high-end of its reference ranges was informed by Ashland Global Holdings Inc., DuPont de Nemours, Inc., and Element Solutions Inc., considering their similar growth trajectory, margin profile, and technological expertise. While considered, Moelis did not utilize data for Air Products & Chemicals, Inc. and Albemarle Corporation in its reference ranges because Moelis assessed that those companies have a different customer mix than Grace. Moelis also did not utilize data for Celanese Corporation in its reference ranges because Moelis assessed that Celanese’s overall portfolio of business assets contains less specialty chemical assets than Grace. Finally, Moelis did not utilize data for Hexcel Corporation in its reference ranges because Moelis assessed that Hexcel’s EBITDA estimates are depressed given Hexcel’s exposure to aerospace and defense, which has been disproportionally impacted by COVID-19. The other catalyst manufacturers were included for reference only and not utilized by Moelis for purposes of selecting the reference range due to the limited relative revenue contribution of the catalyst segments to the aggregate product portfolio of the companies.

Based on the foregoing analysis and its professional judgment and experience, Moelis selected reference ranges of 10.5x to 12.5x estimated pro forma Adjusted EBITDA for calendar year 2021 and 9.5x to 11.5x estimated Adjusted EBITDA for calendar year 2022. Moelis then applied these multiples to Grace’s estimated pro forma Adjusted EBITDA for calendar year 2021 and estimated Adjusted EBITDA for calendar year 2022, respectively, provided by Grace’s management. This analysis indicated an implied per share value ranges for the Grace common stock of $60.34 to $78.13 per share, and $65.72 to $86.43 per share, respectively. Moelis compared the implied per share value ranges to the Merger Consideration of $70.00 per share.

Moelis reviewed financial information for selected precedent transactions announced since 2013 with an EV of at least approximately $300 million involving companies that manufacture specialty chemicals and catalysts on a global basis serving a broad range of transportation, industrial and consumer applications and high value specialty chemical companies with similar financial profile, technology focus and customer exposure. Moelis reviewed, among other things, transaction values of the selected precedent transactions as a multiple of last 12 month (“LTM”) Adjusted EBITDA of the target company. Financial data for the relevant transactions were based on publicly available information relating to the relevant transaction.

The selected precedent transactions used in this analysis and their implied transaction value to LTM Adjusted EBITDA multiples are summarized in the following table:

In reviewing the characteristics of the selected precedent transactions for purposes of selecting its reference range to apply to Grace’s estimated financial metrics, Moelis noted that its reference range was informed by the mean and median of EV / LTM Adj. EBITDA multiples of selected precedent transactions after considering the selected precedent transactions at the high-end and low-end of the implied transaction multiples. Moelis also noted that its reference range was also informed by selected precedent transactions involving catalysts companies, including Grace’s acquisition of Albemarle Corporation’s Polyolefin Catalysts business at 12.8x EV / LTM Adjusted EBITDA and Grace’s acquisition of Dow Chemical Company’s Catalysts business at 11.1x EV / LTM Adjusted EBITDA. Moelis noted that these were smaller transactions in terms of EV and occurred during a meaningfully different market environment.

Based on the foregoing analysis and its professional judgment and experience, and given the nature of Grace’s operations, Moelis selected a reference range of 11.0x to 13.0x EV / LTM Adjusted EBITDA. Moelis then applied these multiples to Grace’s estimated pro forma Adjusted EBITDA for calendar year 2021 provided by Grace’s management. Moelis used Grace’s Adjusted EBITDA for calendar year 2021 to normalize for the effects of COVID-19 on Grace’s financial performance and included the estimated full-year run-rate impact of the FCS Acquisition. This analysis indicated an implied per share value range for the Grace common stock of $64.81 to $82.55 per share. Moelis compared the implied per share value range to the Merger Consideration of $70.00 per share.

For informational purposes only, Moelis then also applied these multiples to Grace’s estimated Adjusted EBITDA for calendar year 2021 provided by Grace’s management plus an estimated additional run-rate EBITDA of $50 million expected to result from increased capacity from recent capital investments that has not yet been fully realized due to COVID-19 and certain operating segment challenges. This analysis indicated an implied per share value range for the Grace common stock of $72.95 to $92.11 per share. Moelis did not utilize this analysis for purposes of its opinion given the uncertainty of projecting the timing of increased EBITDA resulting from the

increased capacity in the current environment. In addition, given the lack of public information relating to adjustments for capital investments of target companies involved in the selected precedent transactions, Moelis noted that applying potential incremental EBITDA resulting from Grace’s increased capital investment to selected precedent information that may not have been adjusted in a consistent way could result in an implied per share value range that was not comparable for purposes of this analysis.

Moelis performed a discounted cash flow analysis of Grace using the Management Projections and other information and data provided by Grace’s management to calculate the present value of the estimated future unlevered after-tax free cash flows projected to be generated by Grace and the present value of Grace’s estimated terminal value, taking into account the present value of Grace’s net operating losses and other tax credits. For purposes of the discounted cash flow analysis, Moelis calculated unlevered free cash flow as Adjusted EBITDA, less (i) taxes, (ii) capital expenditures, (iii) changes in net working capital, (iv) cash paid for environmental and other legacy liabilities and (v) other miscellaneous adjustments.

Moelis utilized a range of discount rates of 7.50% to 9.25% based on an estimated range of Grace’s weighted average cost of capital. The estimated weighted average cost of capital range reflected a cost of equity derived using the Capital Asset Pricing Model using (i) a risk-free rate based on 20-year U.S. government bonds, (ii) a selected range of unlevered betas and debt to total capitalization ratios informed by the selected publicly traded companies described above, (iii) an equity risk premium and (iv) a size premium based on publicly traded companies with similar equity values to Grace. Moelis used the foregoing range of discount rates to calculate the present values as of December 31, 2020 of (i) Grace’s estimated after-tax unlevered free cash flows for calendar years 2021 through 2025 (in each case, discounted using the mid-year discounting convention) and (ii) the estimated terminal values derived by applying a range of selected terminal multiples of 9.5x to 10.5x to Grace’s estimated terminal year Adjusted EBITDA.

For purposes of selecting the reference range to apply to Grace’s estimated terminal year Adjusted EBITDA, Moelis noted that the terminal multiple was informed most closely by (i) current and historical trading multiples for Grace, (ii) current and historical trading multiples for the selected publicly traded companies and (iii) headwinds in the refining industry, which are expected to drive multiple contraction over time. Based on the foregoing analysis and its professional judgment and experience, Moelis selected a multiple range of 9.5x to 10.5x estimated terminal year Adjusted EBITDA. Moelis then applied such multiple range to Grace’s estimated terminal year Adjusted EBITDA of $824 million provided by Grace’s management to calculate the estimated terminal values. Grace’s estimated terminal year Adjusted EBITDA reflects the impact of Grace’s management’s long-term, publicly disclosed view of expected lower demand for Grace’s FCC business within the Refining Technologies segment based on long-term secular trends in the refining industry.

In calculating the implied per share value ranges for the Grace common stock, Moelis separately valued Grace’s tax attributes including tax credits and net operating losses with the utilization based cash tax savings schedule for calendar years 2021 through 2030 provided by Grace’s management and using a cost of equity range of 8.5% to 12.5%.

Based on the foregoing, Moelis derived implied per share value ranges for the Grace common stock of $66.69 to $83.39. Moelis compared the implied per share value range to the Merger Consideration of $70.00 per share.

For informational purposes only, Moelis also performed a discounted cash flow analysis of Grace with a terminal year Adjusted EBITDA of $882 million based on Grace’s estimated Adjusted EBITDA for calendar year 2025, which was Grace’s terminal year projected Adjusted EBITDA prior to further adjustments by Grace to take into account the impact of the long-term secular trends in the refining industry on the FCC business within the Refining Technologies segment. This analysis indicated an implied per share value range for the Grace common stock of $71.93 to $89.62 per share. Moelis did not utilize this analysis for purposes of its opinion.

Subsequent to the April 25, 2021 presentation to the Board of Directors, Moelis discovered that in performing the foregoing discounted cash flow analysis, Moelis double counted $15.3 million of acquisition-related costs for the FCS Acquisition in Grace’s estimated future unlevered after-tax free cash flow calculation for 2021 and the projected December 31, 2020 balance sheet. Moelis recalculated Grace’s estimated future unlevered after-tax free cash flow for 2021 to remove the $15.3 million of these costs. This recalculation and the impact on the discounted cash flow analysis did not result in any change to Moelis’ ultimate fairness opinion. Moelis did, however, provide the Board of

Directors with the revised discounted cash flow analysis, which indicated (i) an increase to the discounted cash flow analysis implied per share value range for the Grace common stock of approximately $0.22 per share, and (ii) an implied per share value range for the Grace common stock of $66.91 to $83.61 (as compared to $66.69 to $83.39 prior to the correction for the estimated future unlevered after-tax free cash flow for 2021). For informational purposes only, Moelis also recalculated its discounted cash flow analysis using the corrected estimated future unlevered after-tax free cash flow for 2021 and the terminal year Adjusted EBITDA of $882 million, which indicated an implied per share value range for the Grace common stock of $72.14 to $89.84 (as compared to $71.93 to $89.62 prior to the correction for the estimated future unlevered after-tax free cash flow for 2021).

Moelis also noted for the Board of Directors the following additional factors that were not considered part of Moelis’ financial analyses with respect to its opinion, but were referenced for informational purposes: (i) an illustrative leverage buyout analysis for the Grace common stock that reviewed Grace using the Management Projections and other information and data provided by Grace’s management which, based on, among other things, a 6.0x leverage and a 15% to 25% internal revenue rate of return, reflected a range of implied share prices of $48.51 to $65.58, (ii) the historical intraday trading prices for the Grace common stock during the 52-week period ended April 23, 2021, which reflected low and high stock prices during such period of $38.70 and $65.17 per share, (iii) the one-year forward stock price targets for the Grace common stock in recently published, publicly available equity research analysts’ reports, which indicated undiscounted low and high stock price targets ranging from $65.00 to $75.00 per share, and (iv) the one-year forward stock price targets for the Grace common stock in recently published, publicly available equity research analysts’ reports, which was discounted for one year and indicated low and high stock price targets ranging from $58.82 to $67.87 per share.

The foregoing is a summary of the analyses undertaken by Moelis in connection with Moelis’ opinion. The preparation of a fairness opinion is a complex analytical process and is not necessarily susceptible to partial analysis or summary description. Selecting portions of the analyses or summary set forth above, without considering the analyses as a whole, could create an incomplete view of the processes underlying Moelis’ opinion. In arriving at its fairness determination, Moelis considered the results of all of its analyses and did not attribute any particular weight to any factor or analysis. Rather, Moelis made its fairness determination on the basis of its experience and professional judgment after considering the results of all of its analyses. No company or transaction used in the analyses described above is identical to Grace or the Merger. In addition, such analyses do not purport to be appraisals, nor do they necessarily reflect the prices at which businesses or securities actually may be sold. Analyses based upon forecasts of future results are not necessarily indicative of actual future results, which may be significantly more or less favorable than suggested by such analyses. Because the analyses described above are inherently subject to uncertainty, being based upon numerous factors or events beyond the control of the parties or their respective advisors, neither Grace nor Moelis or any other person assumes responsibility if future results are materially different from those forecast.

The Merger Consideration was determined through arm’s-length negotiations between Grace and Parent and was approved by the Board of Directors. Moelis did not recommend any specific consideration to Grace or the Board of Directors, or that any specific amount or type of consideration constituted the only appropriate consideration for the transaction. The Board of Directors selected Moelis as its financial advisor because it is an internationally recognized investment banking firm that has substantial experience in transactions similar to the Merger. Pursuant to a letter agreement dated April 12, 2021, Moelis acted as financial advisor to Grace in connection with the Merger and will receive a fee for its services, estimated to be approximately $28 million in the aggregate based on the information available as of the date of announcement of the Merger, $3 million of which was earned in connection with the delivery of Moelis’ opinion dated April 26, 2021, in connection with the Board of Directors’ consideration of the Merger, regardless of the conclusion reached therein, and the remainder of which is contingent upon completion of the Merger. Furthermore, Grace has agreed to reimburse Moelis for certain expenses and to indemnify Moelis for certain liabilities, including liabilities under the federal securities laws, arising out of its engagement.

Moelis’ affiliates, employees, officers and partners may at any time own securities (long or short) of Grace and Parent. In the past two years, Moelis has not provided investment banking or other services to Grace or Parent. Moelis may, in the future, provide investment banking or other services to Grace, Parent or other parties

involved in the Merger and may receive compensation for such services. 40 North or its affiliates have invested in, and from time to time may invest in, securities of entities that are affiliated with Moelis. Mr. Shlomo Yanai, a member of the Board of Directors, serves as a senior advisor to Moelis. Mr. Yanai did not participate in the preparation of the Moelis opinion described above or in the provision of financial advisory services by Moelis to the Board of Directors.

In addition to the fairness presentation described above, Moelis presented to the Board of Directors at the meetings held on April 7, 2021 and April 25, 2021 that were each supplemented by respective written presentations. In addition, Moelis provided to the Board of Directors a written supplemental presentation on May 23, 2021. Copies of such presentations (which we collectively refer to as the “additional Moelis presentations”) have been filed as exhibits to the Schedule 13E-3 filed with the SEC in connection with the Merger, will be made available for inspection and copying at the principal executive offices of Grace during its regular business hours by any interested holder of common stock, and may be obtained by requesting it in writing from Grace at the address described in the section of this proxy statement captioned “Where You Can Find More Information.”

The additional Moelis presentations did not form the basis of the Moelis fairness opinion described above. The additional Moelis presentations dated April 7, 2021 and April 25, 2021 were given to the Board of Directors to assist in the negotiations with Parent and the evaluation of the proposed Merger and contained, among other things, an outline of the terms of Parent’s bid as of such date, the status of negotiations with other interested parties and Moelis’ preliminary financial analysis (including a selected publicly traded companies analysis, selected precedent transactions analysis and discounted cash flow analysis), in each case subject to further updates reflected in the fairness presentation. As described above in this section, the supplemental presentation dated May 23, 2021 was provided to the Board of Directors solely to recalculate Grace’s estimated future unlevered after-tax free cash flow for 2021 to remove certain acquisition-related costs for the FCS Acquisition and revise Moelis’ discounted cash flow analysis.

Grace’s purpose for engaging in the Merger is to enable the Grace Stockholders to receive the Merger Consideration, which represents a premium of 59% over the closing price of the Grace common stock of $44.05 on November 6, 2020, the last trading day prior to the public announcement of 40 North’s initial proposal to acquire Grace on November 9, 2020. Grace believes that the Merger provides the best opportunity to maximize stockholder value (including for unaffiliated security holders). Grace has also considered certain additional factors in determining to undertake the Merger, which are described in further detail in the section of this proxy statement captioned “—Recommendation of the Board of Directors; Reasons for the Merger; Fairness of the Merger.”

Under the SEC’s rules governing “going-private” transactions, including Rule 13e-3 under the Exchange Act, the following persons (collectively, the “Purchaser Filing Persons”) may be deemed to be “affiliates” of Grace and therefore each Purchaser Filing Person is required to disclose, among other things, its purposes and reasons for the Merger to Grace’s “unaffiliated security holders” as defined in Rule 13e-3:

Each Purchaser Filing Person is making the statements included in this part of the proxy statement solely for the purpose of conforming with the requirements of Rule 13e-3 and related rules under the Exchange Act. The views of the Purchaser Filing Persons should not be construed as a recommendation to any unaffiliated security holder of Grace as to how that security holder should vote on the proposal to adopt the Merger Agreement or any other proposal considered at the Special Meeting.

For the Purchaser Filing Persons, the purpose of the Merger is to enable Parent to acquire control of Grace so that Parent can operate Grace as a privately held company via a transaction in which the stockholders of Grace will be cashed out for $70.00 per share of Grace common stock, and Parent will bear the rewards and risks of the ownership of Grace after completion of the Merger. In the opinion of the Purchaser Filing Persons, the Merger will provide numerous benefits to the Purchaser Filing Persons and Grace that would follow from Parent acquiring Grace, including, but not limited to: