Document:

EX-10.15

 Exhibit 10.15 

EXCHANGE AGREEMENT 
 THIS
EXCHANGE AGREEMENT (this “Agreement”) is made and entered into as of                 , 2021, by and between Compass, Inc., a Delaware corporation
(the “Company”), and Robert Reffkin (the “Founder”). 
 WHEREAS, the Company’s board of directors
(the “Board”) has determined that it is in the best interests of the Company and its stockholders to implement a multi-class common stock structure in connection with the Company’s initial public offering of its capital stock
(the “IPO”) to, among other things, enable the Company to execute its long-term vision; 
 WHEREAS, in connection with the
IPO, the Board and the stockholders of the Company have approved and adopted that certain Twelfth Amended and Restated Certificate of Incorporation of the Company (the “Amended and Restated Certificate of Incorporation”), which,
among other things provides for three classes of common stock of the Company, Class A Common Stock, par value $0.0001 per share (“Class A Common Stock”), entitling holders to one (1) vote for each share
thereof held, Class B Common Stock, par value $0.0001 per share (“Class B Common Stock”), entitling holders to zero (0) votes for each share thereof held unless required by applicable law and a
newly-created Class C Common Stock, par value $0.0001 per share (“Class C Common Stock”), entitling holders to twenty (20) votes per share thereof held; 

WHEREAS, the Board has determined that exchanging certain shares of Class A Common Stock held by Founder for shares of Class C
Common Stock, effective at such time as the Company’s Registration Statement on Form S-1 is declared effective by the Securities and Exchange Commission (the “Effective Time”), as part of
the implementation of the multi-class common stock structure is advisable and in the best interest of the Company and all of its stockholders, including its stockholders other than Founder; and 

WHEREAS, the Parties intend that no gain or loss shall be recognized in the Exchange pursuant to Sections 368(a)(1)(E) and/or 1036 of the
Internal Revenue Code of 1986, as amended (the “Code”). 
 NOW, THEREFORE, in consideration of the foregoing recitals and
the mutual promises, representations and covenants set forth herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged and accepted, the parties hereto agree as follows: 

ARTICLE I. 
 EXCHANGE
AND ISSUANCE OF CLASS C COMMON STOCK 
 1.1 Exchange of Class A Common Stock. 

(a) Subject to the terms and conditions of this Agreement, immediately following the Effective Time, Founder shall be deemed to have
automatically transferred to the Company the shares of Class A Common Stock held by Founder set forth on Exhibit A hereto (the “Class A Shares”) and the Company shall issue to Founder shares of
Class C Common Stock (the “Class C Shares”), at an exchange ratio of one (1) Class A Share for one (1) Class C Share (the “Exchange”). 

(b) Concurrently herewith, Founder is delivering to the Company such instruments of transfer or other documentation as may be reasonably
required to evidence that the shares of Class A Common Stock have been duly transferred to the Company to be held in escrow until the Effective Time and such documents are automatically released without further action by the Company or Founder
at the Effective Time. 

 1.2 Effective Time of the Exchange. 

(a) The Exchange shall occur and be deemed effective without any further action by the Company or Founder immediately upon the Effective Time.

 (b) Upon the effectiveness of the Exchange, the Company shall deliver to Founder such documentation as may be reasonably required to
evidence that the Class C Shares have been duly issued and transferred to Founder. 
 ARTICLE II. 

REPRESENTATIONS AND WARRANTIES OF THE EXCHANGE HOLDER 

Founder hereby represents and warrants to the Company, with respect to the transactions contemplated hereby, as follows: 

2.1 Ownership; Authority. Founder will be, effective as of the Effective Time, the beneficial and legal owner of the Class A Shares
exchanged hereunder, free and clear of all liens, encumbrances and restrictions (except for restrictions on transfer arising under applicable securities laws or as set forth or contemplated by this Agreement, the Amended and Restated Certificate of
Incorporation or any other agreements to which Founder and the Company are a party). Founder has the full right, power and authority to enter into this Agreement and, assuming the waiver or inapplicability of any and all rights of first refusal or co-sale by the Company and the Company’s stockholders that are applicable to the transactions contemplated hereby, to transfer, convey and exchange the Class A Shares in accordance with this Agreement.
Assuming the due authorization, execution and delivery by the Company, this Agreement constitutes a valid and binding agreement of Founder, enforceable against Founder in accordance with its terms (subject to applicable bankruptcy, insolvency,
fraudulent transfer, reorganization, moratorium and other laws affecting creditors’ rights generally and general principles of equity). Upon consummation of the Exchange contemplated hereby, the Company will acquire from Founder good and
marketable title to the Class A Shares, free and clear of any and all liens, encumbrances and restrictions (except for restrictions on transfer arising under applicable securities laws or as set forth or contemplated by this Agreement, the
Amended and Restated Certificate of Incorporation or any other agreements to which Founder and the Company are a party, and subject to applicable bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and other laws affecting
creditors’ rights generally and general principles of equity). 
 2.2 Governmental Authorization. The execution, delivery and
performance by Founder of this Agreement and the consummation of the transactions contemplated hereby require no action by or in respect of, or filing with, any governmental authority on the part of Founder (excluding, for the avoidance of doubt
(a) the filing by the Company of the Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware and (b) compliance by the Company with any applicable requirements of any applicable state or
federal securities laws). For purposes of this Agreement, “governmental authority” means any transnational, domestic or foreign federal, state or local governmental, regulatory or administrative authority, department, court, agency
or official, including any political subdivision thereof. 
 2.3 Noncontravention. The execution, delivery and performance by Founder
of this Agreement and the consummation of the transactions contemplated hereby do not and will not (a) violate any governing document, including any trust agreement, applicable to Founder, (b) subject to compliance with Section 2.2,
violate any applicable law, (c) assuming the waiver or inapplicability of any and all rights of first refusal or co-sale held by the Company or the Company’s stockholders that are applicable to the
transactions contemplated hereby, require any consent or other action under, constitute a default under, or give rise to any right of termination, cancellation or acceleration of any obligation of Founder or to the loss of any benefit to which
Founder is entitled under any provision of any agreement or other instrument binding upon Founder or (d) result in the creation or imposition of any lien on Founder’s Class C Shares, other than restrictions on transfer arising under
applicable securities laws or as set forth or contemplated by this Agreement, the Amended and Restated Certificate of Incorporation or any other agreements to which Founder and the Company are a party. 

  
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 2.4 Restricted Securities; Rule 144. Founder understands that the Class C Shares
are characterized as “restricted securities” under the Securities Act of 1933, as amended (“Securities Act”), because such shares are being acquired from the Company in a transaction not involving a public offering and in
exchange for shares acquired from the Company in a transaction not involving a public offering, and that under the Securities Act and the rules and regulations promulgated thereunder the Class C Shares may be resold without registration under
the Securities Act only in certain limited circumstances, and subject to the restrictions under the Company’s certificate of incorporation. Founder understands and hereby acknowledges that the Class C Shares must be held indefinitely
unless subsequently registered under the Securities Act or an exemption from such registration is otherwise available. Founder is aware of the provisions of Rule 144 promulgated under the Securities Act, which permit limited resales of shares
purchased in a transaction not involving a public offering, subject to the satisfaction of certain conditions. 
 2.5 Legends. It is
understood that any certificate or book entry position representing the Class C Shares and any securities issued in respect thereof or exchange therefor, shall bear legends in substantially the following form (in addition to any legend required
under applicable state securities laws or agreements to which Founder is a party): 
 “THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED EXCEPT AS PERMITTED
UNDER THE ACT AND APPLICABLE STATE SECURITIES LAWS PURSUANT TO REGISTRATION OR AN EXEMPTION THEREFROM. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL SATISFACTORY TO THE ISSUER THAT SUCH OFFER, SALE OR TRANSFER, PLEDGE OR
HYPOTHECATION OTHERWISE COMPLIES WITH THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS.” 
 ARTICLE III. 

REPRESENTATIONS AND WARRANTIES OF THE COMPANY 

The Company hereby represents and warrants to Founder, with respect to the transactions contemplated hereby, as follows: 

3.1 Corporate Existence and Power. The Company is a corporation duly incorporated, validly existing and in good standing under the laws
of the State of Delaware. 
 3.2 Corporate Authorization. (a) The execution, delivery and performance by the Company of this
Agreement and the consummation of the transactions contemplated hereby, including the issuance and delivery of the Class C Shares in accordance with the Amended and Restated Certificate of Incorporation, are within the corporate powers of the
Company and have been duly authorized by all necessary corporate action on the part of the Company and the Company’s stockholders, subject to compliance with Section 3.3. Any and all rights of first refusal or co-sale held by the Company or the Company’s stockholders that are applicable to the transactions contemplated hereby have been waived or are otherwise
inapplicable. Assuming the due authorization, execution and delivery by Founder, this Agreement constitutes a valid and binding agreement of the Company, enforceable against the Company in
accordance with its terms (subject to applicable bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and other laws affecting creditors’ rights generally and general principles of equity). 

  
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 3.3 Governmental Authorization. The execution, delivery and performance by the
Company of this Agreement and the consummation of the transactions contemplated hereby require no action by or in respect of, or filing with, any governmental authority other than compliance by the Company with any applicable requirements of any
applicable state or federal securities laws. 
 3.4 Noncontravention. The execution, delivery and performance by the Company of this
Agreement and the consummation of the transactions contemplated hereby do not and will not, assuming compliance with the matters referred to in Section 3.3, (a) violate the certificate of incorporation or bylaws of the Company, (b) violate
any applicable law, (c) require any consent or other action by any person under, constitute a default under, or give rise to any right of termination, cancellation or acceleration of any right obligation of the Company or to the loss of any
benefit to which the Company is entitled under any provision of any agreement or other instrument binding upon the Company or (d) result in the creation or imposition of any lien on the Class C Shares other than as set forth or
contemplated by this Agreement or the Amended and Restated Certificate of Incorporation. 
 ARTICLE IV. 

COVENANTS 
 4.1
Market Stand-Off Agreement. Founder has entered into a lock-up agreement with the underwriters of the IPO with respect to the sale, disposition or transfer of his
securities of the Company and Founder agrees not to revoke such lock-up agreement. Founder also agrees that any other lock-up or market
stand-off agreements applicable to the shares of Common Stock of the Company held by him continue to apply to the Class C Shares in accordance with the terms of such agreements. 

4.2 Waiver of Right of First Refusal. The Company hereby waives any preexisting rights of first refusal applicable to the transactions
contemplated hereby. 
 ARTICLE V. 

GENERAL PROVISIONS 

5.1 Governing Law. This Agreement shall be governed in all respects by the internal laws of the State of Delaware as applied to
agreements entered into among Delaware residents to be performed entirely within Delaware, without regard to principles of conflicts of law. 

5.2 Successors and Assigns. Except as otherwise provided herein, the provisions hereof shall inure to the benefit of, and be binding
upon, the successors, assigns, heirs, executors and administrators of the parties hereto. 
 5.3 Entire Agreement; Amendment. Other
than the rights, restrictions and preferences provided for the Class C Common Stock pursuant to the Amended and Restated Certificate of Incorporation and bylaws, this Agreement, including the exhibits attached hereto, constitutes the full and
entire understanding and agreement between the parties with respect to the subject matter hereof. Neither this Agreement nor any term hereof may be amended or, waived other than by a written instrument signed by Founder and the Company. 

5.4 Counterparts. This Agreement may be executed in counterparts, each of which shall be deemed an original, and all of which together
shall constitute one and the same instrument. 

  
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 5.5 Tax Consequences. The Parties intend that no gain or loss shall be recognized in
the Exchange pursuant to Sections 368(a)(1)(E) and/or 1036 of the Code. The Parties adopt this Agreement as a plan of reorganization within the meaning of Treasury Regulations Sections 1.368-2(g) and 1.368-3(a). Notwithstanding the foregoing, Founder has reviewed with his own tax advisors the federal, state, local and foreign tax consequences of the Exchange, investment in the Class C Shares and the
transactions contemplated by this Agreement. Founder is relying solely on such advisors and not on any statements or representations of the Company or any of its agents in connection with the transactions contemplated hereby, except for the
representations and warranties of the Company expressly set forth in Article III. 
 [Signature Page Follows] 

  
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 IN WITNESS WHEREOF, the undersigned have executed this Agreement to be effective as of the
date first above written. 
  

			
	COMPASS, INC.
		
	By:	 	
                     
                    

	Name:	 	  

	Title:	 	  

	
	 ROBERT REFFKIN
  

	By:	 	  

 Exhibit A 

Class A Shares to be Exchanged 

Number:                [    ] 

Record Holder:    Robert ReffkinEX-10.1

 EXHIBIT 10.1 

TRANSITION AGREEMENT AND GENERAL RELEASE AND WAIVER OF CLAIMS 

This Transition Agreement and General Release and Waiver of Claims (hereafter “Agreement”) is entered into by and between PQ
Corporation, a Pennsylvania corporation (the “Company”‘), and Michael Crews (the “Mr. Crews”). 
 In
consideration of the mutual promises and covenants contained herein, including but not limited to the benefits set forth in Schedule A, a copy of which is attached and incorporated by reference herein, and the Severance Agreement dated as of
August 31, 2017 (the “Severance Agreement”), and other good and valuable consideration the receipt of which hereby is acknowledged, the parties agree as follows: 

(1)    Separation from Employment. The parties have mutually agreed that, as a result of the downsizing of the Company,
Mr. Crews’ employment will end as of September 30, 2021 (the “Separation Date”). Effective on his Separation Date, Mr. Crews’ employment with the Company will cease subject to the terms and conditions hereinafter
set forth. Between the date on which Mr. Crews signs this Agreement and the Separation Date, Mr. Crews will continue to report to work on a regular basis and perform his regular duties, unless the Company determines that Mr. Crews no
longer has to report on a full-time or regular basis, in which case the Company will continue to pay Mr. Crews his regular salary and maintain his benefits through the Separation Date. Between the date of this Agreement and the Separation Date,
Mr. Crews is entitled to take all accrued but unused vacation time and/or paid time off. During that time period, the Company will also continue to pay Mr. Crews his regular salary and maintain his regular benefits. The Company will also
pay Mr. Crews for all properly reported and reimbursable expenses incurred prior to the Separation date. 
 (2)    Release and
Waiver of Claims. Mr. Crews, for himself and his family, heirs, executors, administrators, legal representatives, and their respective successors and assigns (the “Related Parties”), hereby releases and forever discharges
the Company, and all of its parents (including but not limited to PQ Group Holdings, Inc.), affiliates, subsidiaries, divisions and joint ventures, and their respective officers, directors, employees, agents, parents, stockholders, representatives,
employee benefit plans and their successors and assigns (collectively, “Company Entity” or “Company Entities”), from all rights, claims, demands, suits, causes of action of any kind or nature whatsoever, known or
unknown, in law or in equity Mr. Crews ever had, has or may have or which the Related Parties may have, arising at any time on or before the date hereof, based on or arising out of Mr. Crews’ dealings with any Company Entity,
including but not limited to any claims arising out of Mr. Crews’ employment with any Company Entity or the decision to end that employment on the Separation Date, including without limitation any claims under the Severance Agreement, or
based on any services provided to any Company Entity by Mr. Crews other than pursuant to an employment relationship with any Company Entity. This includes a release of any and all rights, claims or demands Mr. Crews may have, whether known
or unknown, under the Age Discrimination in Employment Act (“ADEA”), which prohibits age discrimination in employment; Title VII of the Civil Rights Act of 1964, which prohibits discrimination in

 
employment based on race, color, national origin, religion or sex; the Equal Pay Act, which prohibits paying men and women unequal pay for equal work; or under any other federal, state or local
laws or regulations regarding employment discrimination or termination of employment. This also includes a release by Mr. Crews of any claims for wrongful discharge or discrimination under any statute, rule, regulation or under the common law,
including, without limitation, the Sarbanes-Oxley Act. 
 (3)    Rights Not Released or Waived. This release is intended to be a
general release and excludes only those claims under any statute or common law that Mr. Crews is legally barred from releasing. Mr. Crews understands that the release does not include and the parties hereto expressly reserve: (i) any
claim that cannot be released or waived as a matter of law; (ii) any claim for or right to vested benefits in accordance with the Company’s employee benefit plans and equity arrangements, including but not limited to any pension or
retirement account benefits, but specifically excluding, among other plans, any other severance plan or policy; (iii) any right to enforce any term of this Agreement and any surviving provisions of the Severance Agreement; (iv) any claims
based on acts or events occurring after Mr. Crews signs this Agreement, except for claims arising from Mr. Crews’ employment or termination of employment with Company, up to and through the date Mr. Crews signs this Agreement;
(v) any claims with respect to indemnification or coverage under directors’ and officers’ liability insurance or any challenge to the validity of the Agreement; (vi) the right to file a charge or complaint with, or provide
testimony, assistance or participation in, any investigation, proceeding or hearing conducted by any federal, state or local governmental agency, including but not limited to the Equal Employment Opportunity Commission (“EEOC”) and
to report violations of any law administered by the Occupational Safety and Health Administration (“OSHA”), or to provide documents and make other disclosures protected under the whistleblower provisions of state or federal law or
regulation (including but not limited to the Security and Exchange Act); or (vii) the right to receive any financial awards from OSHA or the SEC for reporting possible violations of federal law or regulation in cases where the law prohibits
employees from waiving their rights to receive such payments. 
 (4)    Section 409A. (a) Mr. Crews understands that
because Mr. Crews is a “specified employee” under Section 409A of the Internal Revenue Code (“IRC”), he will incur adverse tax consequences if his separation benefits which are not otherwise excluded under 409A begin
within six months of the Separation Date. Because of those tax consequences, Mr. Crews is hereby informed to consult with an attorney of his choice (and at his expense). 

(b)    For purposes of this Agreement, each payment is intended to be excepted from Section 409A to the maximum
extent provided as follows: (i) each payment made within the applicable 24 month period specified in Treas. Reg. § 1.409A-1(b)(4) is intended to be excepted under the short-term deferral exception;
(ii) post-termination medical benefits are intended to be excepted under the medical benefits exceptions as specified in Treas. Reg. § 1.409A-l(b)(9)(v)(B); and (iii) to the extent payments are
made as a result of an involuntary separation, each payment that is not otherwise excepted under the short-term deferral exception or medical benefits exception is intended to be excepted under the involuntary pay exception as specified in Treas.
Reg. § 1.409A-l(b)(9)(iii). Mr. Crews shall have no right to designate the date of any payment under this Agreement. Except as otherwise permitted under Section 409A, no payment hereunder shall
be accelerated or deferred unless such acceleration or deferral would not result in additional tax or interest pursuant to Section 409A. 

  
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 (5)    Affirmations. (a) Mr. Crews represents and agrees by signing
this Agreement that he has not been denied any leave or benefit requested, has received the appropriate pay for all hours worked for Company and has no known workplace injuries or occupational diseases. 

(b)    Mr. Crews further affirms that he has been paid and/or has received all leave (paid or unpaid), compensation, wages, bonuses
and/or commissions to which Mr. Crews may be entitled and that no other leave (paid or unpaid), compensation (including but not limited to severance pay), wages, bonuses and/or commissions are due to Mr. Crews through the date he signs
this Agreement, except as provided under Article III of the Severance Agreement. 
 (c)    If any administrative agency or court assumes
jurisdiction of any charge, complaint, proceeding or action including a claim or course of action released in Section 2 of this Agreement, Mr. Crews agrees not to accept, recover or receive any monetary damages or other relief from or in
connection with such claim or cause of action, including but not limited to charges filed with the EEOC. 
 (d)    The compensation pay
and benefits set forth in Schedule A being received by Mr. Crews is compensation that Mr. Crews is not entitled to receive in the absence of executing this Agreement. 

(e)    On or before the Separation Date, Mr. Crews will return to the Company all property and information belonging to the Company,
including, but not limited to the following (where applicable): computers (desktop and/or laptop), tablet; devices (including USB, external hard drives, etc.), handheld devices, keys, access cards, passwords, and/or ID cards; all electronically
stored and paper copies of all data in any way pertaining to the Company’s business and the Company’s files; and all records, customer lists, written information, forms, plans, and other documents, including electronically stored
information. Mr. Crews shall search his electronic devices, device back-ups, residence, and automobile and agrees that by signing below represents that he has returned all such property in his possession
or control. 
 (f)    Mr. Crews acknowledges and agrees that he remains bound by the restrictions contained in Articles IV and V of
the Severance Agreement after the Separation Date. 
 (6)    Release and Waiver of Claims Under the Age Discrimination in Employment
Act. Mr. Crews acknowledges that the Company has encouraged Mr. Crews to consult with an attorney of Mr. Crews’ choosing, at Mr. Crews’ expense, and, through this Agreement, encourages Mr. Crews to consult with
an attorney with respect to any possible claims Mr. Crews may have, including claims under the ADEA, as well as under the other federal, state and local laws described in Section 2 hereof. Mr. Crews understands that by signing this
Agreement Mr. Crews is in fact waiving, releasing and forever giving up any claim under the ADEA, as well as all other federal, state and local laws described in Section 1 hereof that may have existed on or prior to the date hereof. 

(7)    Waiting Period and Revocation Period. Mr. Crews hereby acknowledges that the Company has informed Mr. Crews that
Mr. Crews has up to twenty (21) days to consider this Agreement and Mr. Crews may knowingly and voluntarily waive that 21 day period by signing this Agreement 

  
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earlier. Mr. Crews also understands that Mr. Crews shall have seven (7) days following the date on which Mr. Crews signs this Agreement within which to revoke it by providing
a written notice of revocation to the Company by hand delivering or mailing it to William J. Sichko, Jr. Esq., 300 Lindenwood Drive, Valleybrooke Corporate Center, Malvern, PA, 193551740, post-marked within the seven day period. 

(8)    Acceptance. To accept this Agreement, Mr. Crews shall execute and date this Agreement on the spaces provided and return
a copy to the Company at any time during the twenty-one (21) day period commencing on the date Mr. Crews receives this Agreement, without extension of any kind (including by mutual agreement of the
parties), and provided Mr. Crews does not deliver written revocation to the Company within seven (7) days after such execution. 

(9)    No Disparagement. Mr. Crews has not from the date Mr. Crews was given this Agreement and will not in the future
make any defamatory or disparaging statements to any third parties regarding any Company Entities, or any of their employees, officers, or board members, as well as the Company’s products, services and methods of operations. Notwithstanding the
foregoing, this Agreement does not prohibit Mr. Crews from (a) providing truthful testimony in response to compulsory legal process, (b) participating or assisting in any investigation or inquiry by a governmental agency acting within
the scope of its statutory or regulatory jurisdiction, or (c) making truthful statements in connection with any claim permitted to be brought by Mr. Crews under Section 2. In addition, nothing in this Agreement limits, restricts or in
any other way affects Mr. Crews’ communicating with any governmental agency or entity, or communicating with any official or staff person of a governmental agency or entity, concerning matters relevant to the governmental agency or entity
as set forth in Section 3 above. 
 (10)    No Admissions. Neither the execution of this Agreement nor the performance of
its terms and conditions shall be construed or considered by any party or by any other person as an admission of liability or wrongdoing by either party. 

(11)    Counterparts. This Agreement may be executed in one or more counterparts, each of which will be considered an original
instrument and all of which together will be considered one and the same agreement and will become effective when all executed counterparts have been delivered to the respective parties. Delivery of executed pages by facsimile transmission or email
will constitute binding execution of this Agreement. 
 (12)    Assignment. This Agreement shall be binding upon and shall inure
to the benefit of the Company and its respective successors and assigns, and any such successors and assigns shall be considered third-party beneficiaries of this Agreement. Mr. Crews may not assign or transfer any payment obligations under
this Agreement. Notwithstanding the foregoing, if Mr. Crews dies while payments are still owed to him under this Agreement, those payments will be paid to his estate. 

(13)    Severability. If any term, provision or paragraph of this Agreement is determined by a court of competent jurisdiction to
be invalid or unenforceable for any reason, such determination shall be limited to the narrowest possible scope in order to preserve the enforceability of the remaining portions of the term, provision or paragraph, and such determination shall not
affect the remaining terms, provisions or paragraphs of this Agreement, which shall continue to be given full force and effect. 

  
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 (14)    Binding Effect. If the Company is sold either through a transfer of stock
or the sale of assets (a “Transaction”) during the period of time when benefits are being paid to Mr. Crews under this Agreement, the Company shall be required, as of the closing date of the Transaction, to assign Mr. Crews’
benefits, rights and obligations under this Agreement either to PQ Group Holdings, Inc. or one of its affiliates or subsidiaries that remains as an operating company after the Transaction (the “Remaining Company”). By way of explanation,
and not limitation, the assignment of the Agreement on the effective date of a Transaction is to ensure that the Remaining Company continues to provide Mr. Crews with the consideration set forth in Schedule A. 

(15)    Further Assurances. Mr. Crews agrees to execute and deliver, after the date hereof, without additional consideration,
any additional documents, and to take any further actions, as may be necessary to fulfill the intent of this Agreement and the transactions contemplated hereby. 

(16)    Cooperation. Mr. Crews will (i) cooperate with the Company in all reasonable respects concerning any transitional
matters which require Mr. Crews’ assistance, cooperation or knowledge, including communicating with persons inside or outside the Company as directed by the Company, and (ii) in the event that the Company (or any of its affiliates or
other related entities) becomes involved in any legal action relating to events which occurred during Mr. Crews’ employment with the Company, cooperate to the fullest extent possible in the preparation, prosecution or defense of their
case, including, but not limited to, the execution of affidavits or documents, testifying or providing information requested by the Company. To the extent that Mr. Crews incurs (i) travel-related expenses, (ii) out-of-pocket expenses, and/or (iii) loss of wages as a result of Mr. Crews’ cooperation with the Company as contemplated by this Section, the Company will reimburse Mr. Crews
for such expenses, provided they are reasonable and were approved by the Company in advance. 
 (17)    Entire Agreement. Except
for Articles IV and V of the Severance Agreement, which remain in full force and effect, this Agreement constitutes the complete and final agreement between the parties and supersedes and replaces all prior or contemporaneous agreements,
negotiations, or discussions relating to the subject matter of this Agreement. All provisions and portions of this Agreement are severable. If any provision or portion of this Agreement or the application of any provision or portion of this
Agreement shall be determined to be invalid or unenforceable to any extent or for any reason, all other provisions and portions of this Agreement shall remain in full force and shall continue to be enforceable to the fullest and greatest extent
permitted by law. 
 (18)    Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE
LAWS OF THE COMMONWEALTH OF PENNSYLVANIA APPLICABLE TO CONTRACTS MADE AND TO BE PERFORMED ENTIRELY WITHIN SUCH STATE. 

  
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 IN WITNESS WHEREOF, and with the intention of being legally bound hereby,
Mr. Crews has executed this Transition Agreement and General Release and Waiver of Claims. 
  

									
	 /s/ Michael Crews
	 		 	Date:	 	 3/22/2021
	 	
	Michael Crews	 		 		 		 	

  

							
	PQ CORPORATION:	  		  	

											
						
	BY:	 	/s/ Willaim J. Sichko, Jr.      
	 		  	3/22/2021	  		  	
		 	William J. Sichko, Jr.	 		  	Date	  		  	

  
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 SCHEDULE A 

Detail of Michael Crews’ Payments under the Severance Agreement 

 

	 	1.	 In accordance with Section 3.01(d)(2) & (4) of Mr. Crews’ Severance Agreement,
Mr. Crews’ monthly payment of an amount equal to his monthly salary, plus the monthly portion of his target bonus will begin in October 2021. 

  

	 	2.	 In accordance with Section 3.01(d)(3) of the Severance Agreement, if any bonus is earned for 2021, it will
payable at the same time and in accordance with the Annual Bonus payable to similarly situated employees, except that, due to Section 409A, this payment, if any, must either be made on or before March 15, 2021 or after March 30, 2022.

  

	 	3.	 In accordance with Section 3.01(d)(5) of the Severance Agreement, Mr. Crews’ and his eligible
dependents’ right to continued health, vision and dental plans will begin in October 2021. 

  

	 	4.	 In recognition of Mr. Crews’ contributions to PQ’s success, including but not limited to taking
the Company public, the Compensation Committee of the Board has agreed that Mr. Crews’ equity grants will be amended as follows: 

  

	 	•	 	 Unvested MOI shares and options: Mr. Crews’ unvested MOI shares and options will be eligible to vest
during the 2-year period beginning October 1, 2021, if applicable MOI targets are met during that time. 

  

	 	•	 	 Unvested RSU’s: Mr. Crews’ unvested RSU’s will be eligible to vest during the 2-year period beginning October 1, 2021.

  

	 	•	 	 Vested Options: Mr. Crews will have a period of 2 years beginning October 1, 2021 to exercise any
options that are already vested or become vested. If these vested options are not exercised during that time period, they will expire.

  

	 	•	 	 PSUs: Mr. Crews will be deemed to have worked through December 31, 2021 for purposes of
eligibility to vest his PSU’s.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00324-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00324-of-00352.parquet"}]]