Document:

Exhibit 10.2

2014 RENEWAL PROMISSORY NOTE (PARKSON PROPERTY)

	
$ 881,845.17

	
Executed at Broward County, Florida

	 	
December 17, 2014

FOR VALUE RECEIVED, Parkson Property LLC, a wholly owned subsidiary of Le@P Technology, Inc., with a principal place of business at 5601 N. Dixie Highway, Suite 411, Fort Lauderdale, Florida 33334 (the "Maker"), promises to pay to the order of Bay Colony Associates, Ltd. (the "Payee"), the principal sum of EIGHT HUNDRED EIGHTY-ONE THOUSAND EIGHT HUNDRED FORTY-FIVE DOLLARS AND SEVENTEEN CENTS ($881,845.17), together with interest at the rate of Three and Three-Quarters Percent (3.75%) per annum due and payable in one lump sum of principal and interest on the maturity date of March 31, 2016.  Payment of principal and accrued interest shall be paid to the Payee at 5601 N. Dixie Highway, Suite 411, Ft. Lauderdale, FL 33334, or at such other place or address as the Payee may designate.

This 2014 Renewal Promissory Note (this "Note") is issued and made as described below and under and subject to the following additional terms and conditions:

1.             Renewal of Promissory Note dated September 28, 2001, Promissory Note dated March 17, 2006, Renewal Promissory Note dated October 24, 2007, Renewal Promissory Note dated January 15, 2010, Renewal Promissory Note dated January 31, 2011, Renewal Promissory Note dated February 7, 2012, and Renewal Promissory Note dated December 27, 2012.  This Note is a renewal promissory note, and renews, amends and restates the obligations, terms and conditions of and under that certain Promissory Note made by the Maker to the Payee dated September 28, 2001 (the “Original Note”), as amended, replaced and modified by: (i) that certain Promissory Note dated March 17, 2006, (ii) that certain Renewal Promissory Note dated October 24, 2007, (iii) that certain Renewal Promissory Note dated January 15, 2010, (iv) that certain Renewal Promissory Note dated January 31, 2011 in the original principal amount of $562,500, (v) that certain Renewal Promissory Note dated February 7, 2012 in the original principal amount of $794,650.68, and (vi) that certain Renewal Promissory Note dated December 27, 2012 in the original principal amount of $821,184.39 (the foregoing promissory notes listed in clauses (i) through (vi) above, together with the Original Note, are collectively referred to herein as the “Prior Note”).  By and through this Note, the maturity date for the payment of principal and accrued interest under the Prior Note (in the aggregate amount of $881,845.17, consisting of a principal amount of $821,184.39 and corresponding accrued interest through the date hereof aggregating $60,660.78) has been extended from March 31, 2015 to March 31, 2016.  It is the intention and agreement of the Maker and the Payee that this Note, given in replacement of the Prior Note and its (their) principal amount(s), accrued interest and other obligations, shall amend, restate and replace in its (their) entirety the Prior Note without constituting a novation, satisfaction, cancellation or extinguishment of the indebtedness and amounts due under the Prior Note, but that henceforth the indebtedness (including principal and accrued interest) represented and evidenced by such Prior Note and the obligations thereunder shall be due, payable and paid solely in accordance with the terms and conditions of this Note, and not in accordance with the terms and conditions of the Prior Note.

 

2.             Type of Payment.  Payment of both principal and interest shall be made in currency of the United States of America which at the time of payment shall be legal tender for the payment of public and private debts.

3.             Manner of Payment.  Payment shall be made to Payee at the Payee's address set forth above or at such other place as Payee may designate in writing.

4.             Interest on Overdue Payments.  From and after the date which is fifteen (15) days after the date upon which any payment of principal hereunder becomes due and payable, if the same is not timely paid, interest shall be payable on all sums outstanding hereunder at the rate of fifteen percent (15%) per annum.

5.             Waiver.  Payee hereby waives any and all defaults that exist or may have existed from time to time under the Prior Note (or under any of the promissory notes included or incorporated in the Prior Note), and waives the right to receive any special interest on overdue payments that may have become due or payable under the Prior Note (or under any of the promissory notes included or incorporated in the Prior Note), and accepts the terms and conditions of this Note.

6.             Miscellaneous.

(A)          This Note shall be binding upon the Maker and its successors and assigns.

(B)            If any provision hereof shall be held invalid or unenforceable by any court of competent jurisdiction or as a result of future legislative action, such holding or action shall be strictly construed and shall not affect the validity or effect of any other provision hereof.

(C)            The validity, interpretation and effect of this Note shall be exclusively governed by, and construed in accordance with, the laws of the State of Florida, excluding the "conflict of laws" rules thereof.

(D)            This Note may not be amended or modified, nor shall any waiver of any provision hereof be effective, except by an instrument in writing executed by the Maker and accepted by Payee.

(E)            In case suit shall be brought for the collection hereof, or if it is necessary to place the same in the hands of an attorney for collection, the Maker agrees to pay reasonable attorneys’ fees and costs for making such collections.

 

IN WITNESS WHEREOF, the Maker and the Payee has each caused this Note to be executed as of the day and year first above written.

PARKSON PROPERTY LLC

(Maker)

	
By: /s/ Timothy C. Lincoln

	
Name: Timothy C. Lincoln

	
Title: Acting Principal Executive Officer and President

ACCEPTED AND AGREED:

BAY COLONY ASSOCIATES, LTD.

(Payee)

	
By:

	
/s/ Phyllis Johns

	 	
Name:  Phyllis Johns

	 	
Title:    SecretaryEX-10.4

 Exhibit 10.4 

STOCKHOLDERS’ AGREEMENT 

DATED AS OF [            ], 2015 

AMONG 
 SUMMIT MATERIALS,
INC. 
 AND 
 THE
OTHER PARTIES HERETO 

 Table of Contents 

 

							
	 	 	 	  	Page	 
	 ARTICLE I. INTRODUCTORY MATTERS
	  	 	1	  
			
	 1.1
	 	Defined Terms	  	 	1	  
	 1.2
	 	Construction	  	 	4	  
		
	 ARTICLE II. CORPORATE GOVERNANCE MATTERS
	  	 	4	  
			
	 2.1
	 	Election of Directors	  	 	4	  
		
	 ARTICLE III. INFORMATION; VCOC
	  	 	6	  
			
	 3.1
	 	Books and Records; Access	  	 	6	  
	 3.2
	 	Certain Reports	  	 	6	  
	 3.3
	 	VCOC	  	 	6	  
		
	 ARTICLE IV. ADDITIONAL COVENANTS
	  	 	9	  
			
	 4.1
	 	Pledges	  	 	9	  
	 4.2
	 	Post-Closing Date Mergers	  	 	9	  
		
	 ARTICLE V. GENERAL PROVISIONS
	  	 	10	  
			
	 5.1
	 	Termination	  	 	10	  
	 5.2
	 	Notices	  	 	10	  
	 5.3
	 	Amendment; Waiver	  	 	11	  
	 5.4
	 	Further Assurances	  	 	11	  
	 5.5
	 	Assignment	  	 	11	  
	 5.6
	 	Third Parties	  	 	11	  
	 5.7
	 	Governing Law	  	 	11	  
	 5.8
	 	Jurisdiction; Waiver of Jury Trial	  	 	12	  
	 5.9
	 	Specific Performance	  	 	12	  
	 5.10
	 	Entire Agreement	  	 	12	  
	 5.11
	 	Severability	  	 	12	  
	 5.12
	 	Table of Contents, Headings and Captions	  	 	12	  
	 5.13
	 	Grant of Consent	  	 	12	  
	 5.14
	 	Counterparts	  	 	13	  
	 5.15
	 	Effectiveness	  	 	13	  
	 5.16
	 	No Recourse	  	 	13	  

  
 i 

 STOCKHOLDERS’ AGREEMENT 

This Stockholders’ Agreement is entered into as of [            ], 2015 by
and among Summit Materials, Inc., a Delaware corporation (the “Company”), and each of the other parties identified on the signature pages hereto (the “Investor Parties”). 

RECITALS: 
 WHEREAS, the Company
is currently contemplating an underwritten initial public offering (“IPO”) of shares of its Class A Common Stock (as defined below); and 

WHEREAS, in connection with the IPO, the Company and the Investor Parties wish to set forth certain understandings between such parties,
including with respect to certain governance matters. 
 NOW, THEREFORE, the parties agree as follows: 

ARTICLE I. 
 INTRODUCTORY MATTERS

 1.1 Defined Terms. In addition to the terms defined elsewhere herein, the following terms have the following meanings when
used herein with initial capital letters: 
 “Affiliate” has the meaning set forth in Rule 12b-2 promulgated under the
Exchange Act, as in effect on the date hereof. 
 “Agreement” means this Stockholders’ Agreement, as the same may be
amended, supplemented, restated or otherwise modified from time to time in accordance with the terms hereof. 
 “Beneficially
Own” has the meaning set forth in Rule 13d-3 promulgated under the Exchange Act. 
 “Blackstone Designee” has the
meaning set forth in Section 2.1(b) hereof. 
 “Blackstone Designator” means the Blackstone Party, or any group
of Blackstone Parties collectively, then holding of record a majority of Outstanding Summit Interests held of record by all Blackstone Parties. 

“Blackstone Entities” means the entities comprising the Blackstone Parties and their Affiliates and their respective
successors and Permitted Assigns. 
 “Blackstone Parties” means the entities listed on the signature pages hereto under the
heading “Blackstone Parties” and any other Blackstone Entities that may from time to time become parties hereto. 

“Blocker Investor Parties” means Blackstone SMT Feeder Fund V L.P., a Delaware limited partnership, Blackstone SMT Feeder
Fund (Cayman) V L.P., a Cayman Islands limited partnership, Blackstone SMT Feeder Fund V-AC, a Delaware limited partnership and Blackstone SMT Feeder Fund (Cayman) V-AC L.P., a Cayman Islands limited partnership. 

 “Board” means the board of directors of the Company. 

“Business Day” means a day other than a Saturday, Sunday, federal or New York State holiday or other day on which commercial
banks in New York City are authorized or required by law to close. 
 “Class A Common Stock” means the shares of
Class A common stock, par value $0.01 per share, of the Company, and any other capital stock of the Company into which such stock is reclassified or reconstituted. 

“Class B Common Stock” means the shares of Class B common stock, par value $0.01 per share, of the Company, and any other
capital stock of the Company into which such stock is reclassified or reconstituted. 
 “Closing Date” means the date of
the closing of the IPO. 
 “Common Stock” means collectively the Class A Common Stock and the Class B Common Stock.

 “Company” has the meaning set forth in the Preamble. 

“Control” (including its correlative meanings, “Controlled by” and “under common Control
with”) means possession, directly or indirectly, of the power to direct or cause the direction of management or policies (whether through ownership of securities or partnership or other ownership interests, by contract or otherwise) of a
Person. 
 “Director” means any director of the Company. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder,
as the same may be amended from time to time. 
 “Exchange Agreement” means the exchange agreement, dated on or about the
date hereof, among the Company, Summit Holdings and the holders of LP Units of Summit Holdings party thereto, as amended and in effect from time to time. 

“Governmental Authority” means any nation or government, any state or other political subdivision thereof, and any entity
exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government. 
 “Investor
Parties” has the meaning set forth in the Preamble. 
 “IPO” has the meaning set forth in the Recitals. 

“Law” means any statute, law, regulation, ordinance, rule, injunction, order, decree, governmental approval, directive,
requirement, or other governmental restriction or any similar form of decision of, or determination by, or any interpretation or administration of any of the foregoing by, any Governmental Authority. 

  
 2 

 “LP Units” means the Class A Units and any other class of units or
interests that is established in Summit Holdings. 
 “Outstanding Summit Interests” means, collectively, (i) the
outstanding shares of Class A Common Stock and (ii) the LP Units held by Persons other than the Company. For purposes of calculating any proportion of Outstanding Summit Interests, the number of Outstanding Summit Interests held by any
Person shall consist of the sum of (a) the number of shares of Class A Common Stock held by such Person and (b) the number of shares of Class A Common Stock such Person would receive upon the exchange of all LP Units held by such
Person in accordance with the Exchange Agreement. 
 “Person” means an individual, a partnership, a corporation, a limited
liability company, an association, a joint stock company, a trust, a joint venture, an unincorporated organization, or other form of business organization, whether or not regarded as a legal entity under applicable Law, or any Governmental Authority
or any department, agency or political subdivision thereof. 
 “Permitted Assigns” means, with respect to a Blackstone
Entity, a Transferee of shares of Common Stock or a Transferee (as defined in the Summit Holdings LP Agreement) that agrees to become party to, and to be bound to the same extent as its Transferor by the terms of, this Agreement. 

“Plan Asset Regulation” has the meaning set forth in Section 3.3(a) hereof. 

“Pre-IPO Owners” means the Blackstone Entities and the other Persons who held Outstanding Summit Interests at the time of the
IPO and any Affiliate thereof that shall become a holder of any Outstanding Summit Interests. 
 “Subsidiary” means, with
respect to any Person, any corporation, limited liability company, partnership, association or other business entity of which: (i) if a corporation, a majority of the total voting power of shares of stock entitled (without regard to the
occurrence of any contingency) to vote in the election of directors, representatives or trustees thereof is at the time owned or Controlled, directly or indirectly, by that Person or one or more of the other Subsidiaries of that Person or a
combination thereof; or (ii) if a limited liability company, partnership, association or other business entity, a majority of the total voting power of stock (or equivalent ownership interest) of the limited liability company, partnership,
association or other business entity is at the time owned or Controlled, directly or indirectly, by that Person or one or more Subsidiaries of that Person or a combination thereof. For purposes hereof, a Person or Persons shall be deemed to have a
majority ownership interest in a limited liability company, partnership, association or other business entity if such Person or Persons shall be allocated a majority of limited liability company, partnership, association or other business entity
gains or losses or shall be or Control the managing member, managing director or other governing body or general partner of such limited liability company, partnership, association or other business entity. 

  
 3 

 “Summit Holdings” means Summit Materials Holdings L.P., a Delaware limited
partnership. 
 “Summit Holdings LP Agreement” means the Fourth Amended and Restated Limited Partnership Agreement of
Summit Holdings, dated on or about the date hereof, as such agreement may be amended from time to time. 
 “Surviving
Company” has the meaning set forth in Section 4.2 hereof 
 “Tax” means any tax or other governmental
fee or like assessment or charge in the nature of a tax that is imposed by any governmental authority, together with any interest, penalty, addition to tax or additional amount imposed by any governmental authority responsible for the imposition of
any such tax. 
 “Tax Receivable Agreement” means the Tax Receivable Agreement, dated as of
[            ], 2015, by and among the Company and certain other parties thereto. 

“Total Number of Directors” means the total number of directors comprising the Board. 

“Transfer” (including its correlative meanings, “Transferor,” “Transferee” and
“Transferred”) shall mean, with respect to any security, directly or indirectly, to sell, contract to sell, give, assign, hypothecate, pledge, encumber, grant a security interest in, offer, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of any economic, voting or other rights in or to such security. When used as a noun, “Transfer” shall
have such correlative meaning as the context may require. 
 “VCOC Investor” has the meaning set forth in
Section 3.3(a) hereof. 
 1.2 Construction. The language used in this Agreement will be deemed to be the language
chosen by the parties to express their mutual intent, and no rule of strict construction will be applied against any party. Unless the context otherwise requires: (a) “or” is disjunctive but not exclusive, (b) words in the
singular include the plural, and in the plural include the singular, and (c) the words “hereof,” “herein,” and “hereunder” and words of similar import when used in this Agreement refer to this
Agreement as a whole and not to any particular provision of this Agreement, and Section references are to this Agreement unless otherwise specified. 

ARTICLE II. 
 CORPORATE GOVERNANCE
MATTERS 
 2.1 Election of Directors. 

(a) Following the Closing Date, the Blackstone Designator shall have the right, but not the obligation, to designate, and the individuals
nominated for election as Directors by or at the direction of the Board or a duly-authorized committee thereof shall include, a number of individuals such that, upon the election of each such individual, and each other

  
 4 

 
individual nominated by or at the direction of the Board or a duly-authorized committee of the Board, as a Director and taking into account any Director continuing to serve as such without the
need for re-election, the number of Blackstone Designees (as defined below) serving as Directors of the Company will be equal to: (i) if the Pre-IPO Owners collectively Beneficially Own 50% or more of the total Outstanding Summit Interests as
of the record date for such meeting, the lowest whole number that is greater than 50% of the Total Number of Directors; (ii) if the Pre-IPO Owners collectively Beneficially Own at least 40% (but less than 50%) of the total Outstanding Summit
Interests as of the record date for such meeting, the lowest whole number that is greater than 40% of the Total Number of Directors; (iii) if the Pre-IPO Owners collectively Beneficially Own at least 30% (but less than 40%) of the total
Outstanding Summit Interests as of the record date for such meeting, the lowest whole number that is greater than 30% of the Total Number of Directors; (iv) if the Pre-IPO Owners collectively Beneficially Own at least 20% (but less than 30%) of
the total Outstanding Summit Interests as of the record date for such meeting, the lowest whole number that is greater than 20% of the Total Number of Directors; and (v) if the Pre-IPO Owners collectively Beneficially Own at least 5% (but less
than 20%) of the total Outstanding Summit Interests as of the record date for such meeting, the lowest whole number that is greater than 10% of the Total Number of Directors. 

(b) If at any time the Blackstone Designator has designated fewer than the total number of individuals that the Blackstone Designator is then
entitled to designate pursuant to Section 2.1(a) hereof, the Blackstone Designator shall have the right to designate such additional individuals which it is entitled to so designate, in which case, any individuals nominated by or at the
direction of the Board or any duly-authorized committee thereof for election as Directors to fill any vacancy on the Board shall include such designees, and the Company shall use its best efforts to (x) effect the election of such additional
designees, whether by increasing the size of the Board or otherwise, and (y) cause the election of such additional designees to fill any such newly-created vacancies or to fill any other existing vacancies. Each such individual whom the
Blackstone Designator shall actually designate pursuant to this Section 2.1 and who is thereafter elected and qualifies to serve as a Director shall be referred to herein as a “Blackstone Designee.” 

(c) In the event that a vacancy is created at any time by the death, disability, retirement or resignation of any Blackstone Designee, any
individual nominated by or at the direction of the Board or any duly-authorized committee thereof to fill such vacancy shall be, and the Company shall use its best efforts to cause such vacancy to be filled, as soon as possible, by a new designee of
the Blackstone Designator, and the Company shall take, to the fullest extent permitted by law, at any time and from time to time, all actions necessary to accomplish the same. 

(d) The Company shall, to the fullest extent permitted by law, include in the slate of nominees recommended by the Board at any meeting of
stockholders called for the purpose of electing directors, the persons designated pursuant to this Section 2.1 and use its best efforts to cause the election of each such designee to the Board, including nominating each such individual
to be elected as a Director as provided herein, recommending such individual’s election and soliciting proxies or consents in favor thereof. 

  
 5 

 (e) In addition to any vote or consent of the Board or the stockholders of the Company required
by applicable Law or the charter or bylaws of the Company, and notwithstanding anything to the contrary in this Agreement, for so long as this Agreement is in effect, any action by the Board to increase or decrease the Total Number of Directors
(other than any increase in the Total Number of Directors in connection with the election of one or more directors elected exclusively by the holders of one or more classes or series of the Company’s stock other than Common Stock) shall require
the prior written consent of the Blackstone Designator, delivered in accordance with Section 5.13 hereof. 
 ARTICLE III. 

INFORMATION; VCOC 
 3.1 Books
and Records; Access. The Company shall, and shall cause its Subsidiaries to, permit the Blackstone Entities and their respective designated representatives, at reasonable times and upon reasonable prior notice to the Company, to review the
books and records of the Company or any of such Subsidiaries and to discuss the affairs, finances and condition of the Company or any of such Subsidiaries with the officers of the Company or any such Subsidiary; provided, however, that
the Company shall not be required to disclose any privileged information of the Company so long as the Company has used commercially reasonable efforts to enter into an arrangement pursuant to which it may provide such information to the Blackstone
Entities without the loss of any such privilege. 
 3.2 Certain Reports. The Company shall deliver or cause to be delivered to
the Blackstone Entities, at their request: 
 (a) to the extent otherwise prepared by the Company, operating and capital expenditure budgets
and periodic information packages relating to the operations and cash flows of the Company and its Subsidiaries; and 
 (b) to the extent
otherwise prepared by the Company, such other reports and information as may be reasonably requested by the Blackstone Entities; provided, however, that the Company shall not be required to disclose any privileged information of the
Company so long as the Company has used commercially reasonable efforts to enter into an arrangement pursuant to which it may provide such information to the Blackstone Entities without the loss of any such privilege. 

3.3 VCOC.
 (a) With
respect to each Blackstone Entity that is intended to qualify its direct or indirect investment in the Company as a “venture capital investment” as defined in the Department of Labor regulations codified at 29 CFR Section 2510.3-101
(the “Plan Asset Regulation”) (each, a “VCOC Investor”), for so long as the VCOC Investor, directly or through one or more subsidiaries, continues to hold any shares of Common Stock (or other securities of the
Company into which such shares of Common Stock may be converted or for which such shares of Common Stock may be exchanged), without limitation or prejudice of any the rights provided to the Blackstone Entities hereunder, the Company shall, with
respect to each such VCOC Investor: 

  
 6 

 (i) provide each VCOC Investor or its designated representative with: 

 

	 	(A)	upon reasonable notice and at mutually convenient times, the right to visit and inspect any of the offices and properties of the Company and its Subsidiaries and inspect and copy the books and records of the Company and
its Subsidiaries; 

  

	 	(B)	as soon as available and in any event within 45 days after the end of each of the first three quarters of each fiscal year of the Company, consolidated balance sheets of the Company and its Subsidiaries as of the end of
such period, and consolidated statements of income and cash flows of the Company and its Subsidiaries for the period then ended prepared in conformity with generally accepted accounting principles in the United States applied on a consistent basis,
except as otherwise noted therein, and subject to the absence of footnotes and to year-end adjustments; 

  

	 	(C)	as soon as available and in any event within 120 days after the end of each fiscal year of the Company, a consolidated balance sheet of the Company and its Subsidiaries as of the end of such year, and consolidated
statements of income and cash flows of the Company and its Subsidiaries for the year then ended prepared in conformity with generally accepted accounting principles in the United States applied on a consistent basis, except as otherwise noted
therein, together with an auditor’s report thereon of a firm of established national reputation; 

  

	 	(D)	to the extent the Company is required by law or pursuant to the terms of any outstanding indebtedness of the Company to prepare such reports, any annual reports, quarterly reports and other periodic reports pursuant to
Section 13 or 15(d) of the Exchange Act, actually prepared by the Company as soon as available; and 

  

	 	(E)	upon written request by the VCOC Investor, copies of all materials provided to the Board, subject to appropriate protections with respect to confidentiality and preservation of attorney-client privilege;

 provided that, in each case, if the Company makes the information described in clauses (B),
(C) and (D) of this Section 3.3(a)(i) available through public filings on the EDGAR System or any successor or replacement system of the U.S. Securities and Exchange Commission, the requirement to deliver such
information shall be deemed satisfied; 

  
 7 

 (ii) make appropriate officers and/or Directors of the Company available, and
cause the officers and directors of its Subsidiaries to be made available, periodically and at such times as reasonably requested by each VCOC Investor, upon reasonable notice and at mutually convenient times, for consultation with such VCOC
Investor or its designated representative with respect to matters relating to the business and affairs of the Company and its Subsidiaries; 

(iii) to the extent that the VCOC Investor requests to receive such information and rights, and to the extent consistent with
applicable Law or listing standards (and with respect to events which require public disclosure, only following the Company’s public disclosure thereof through applicable securities law filings or otherwise), inform each VCOC Investor or its
designated representative in advance with respect to any significant corporate actions, and to provide (or cause to be provided) each VCOC Investor or its designated representative with the right to consult with the Company and its Subsidiaries with
respect to such actions should the VCOC Investor elect to do so; provided, however, that this right to consult must be exercised within five (5) days after the Company informs the VCOC Investor of the proposed corporate action;
provided, further, that the Company shall be under no obligation to provide the VCOC Investor with any material non-public information with respect to such corporate action; and 

(iv) provide each VCOC Investor or its designated representative with such other rights of consultation which the VCOC
Investor’s counsel may determine in writing to be reasonably necessary under applicable legal authorities promulgated after the date hereof to qualify its investment in the Company as a “venture capital investment” for purposes of the
Plan Asset Regulation; provided that the parties agree that any such rights of consultation shall be of a nature consistent with those granted above and nothing in this Agreement shall be deemed to require the Company to grant to the VCOC
Investor any additional rights with respect to the governance or management of the Company. 
 (b) The Company agrees to consider, in good
faith, the recommendations of each VCOC Investor or its designated representative in connection with the matters on which it is consulted as described above in this Section 3.3, recognizing that the ultimate discretion with respect to
all such matters shall be retained by the Company. 
 (c) In the event a VCOC Investor or any of its Affiliates Transfers all or any portion
of their investment in the Company to an Affiliated entity that is intended to qualify as a “venture capital operating company” (as defined in the Plan Asset Regulation), such Transferee shall be afforded the same rights with respect to
the Company afforded to the VCOC Investor hereunder and shall be treated, for such purposes, as a third party beneficiary hereunder. 

  
 8 

 (d) In the event that the Company ceases to qualify as an “operating company” (as
defined in the first sentence of 2510.3-101(c)(1) of the Plan Asset Regulation), or the investment in the Company by a VCOC Investor does not qualify as a “venture capital investment” as defined in the Plan Asset Regulation, then the
Company and each Blackstone Entity will cooperate in good faith to take all reasonable actions necessary, subject to applicable Law, to preserve the VCOC status of each VCOC Investor or the qualification of the investment as a “venture capital
investment,” it being understood that such reasonable actions shall not require a VCOC Investor to purchase or sell any investments. 

(e) For so long as the VCOC Investor, directly or through one or more subsidiaries, continues to hold any shares of Common Stock (or other
securities of the Company into which such shares of Common Stock may be converted or for which such shares of Common Stock may be exchanged) and upon the written request of such VCOC Investor, without limitation or prejudice of any the rights
provided to the Blackstone Entities hereunder, the Company shall, with respect to each such VCOC Investor, furnish and deliver, and in its capacity as the general partner of Summit Holdings, cause Summit Holdings to furnish and deliver, a letter
covering the matters set forth in Sections 3.3(a), 3.3(b), 3.3(c) and 3.3(d) hereof in a form and substance satisfactory to such VCOC Investor. 

ARTICLE IV. 
 ADDITIONAL COVENANTS

 4.1 Pledges. Upon the request of any Blackstone Entity that wishes to pledge, hypothecate or grant security interests in any
or all of the shares of Common Stock or LP Units held by it, including to banks or financial institutions as collateral or security for loans, advances or extensions of credit, the Company agrees to cooperate with each such Blackstone Entity in
taking action reasonably necessary to consummate any such pledge, hypothecation or grant, including without limitation, delivery of letter agreements to lenders in form and substance reasonably satisfactory to such lenders (which may include
agreements by the Company in respect of the exercise of remedies by such lenders) and instructing the transfer agent to transfer any such shares of Common Stock subject to the pledge, hypothecation or grant into the facilities of The Depository
Trust Company without restricted legends. 
 4.2 Post-Closing Date Mergers. The Company agrees that each Blocker Investor Party
shall be entitled to implement either of the following transactions upon the request of the applicable Blocker Investor Party: (a) the holders of interests of such Blocker Investor Party (or any successor to such Blocker Investor Party) shall
contribute all of their interests in such Blocker Investor Party to the Company, in exchange for an aggregate number of shares of Class A Common Stock equal to the number of LP Units held by such Blocker Investor Party along with any rights to
which such holders of interests are entitled to under the Tax Receivable Agreement following such contribution, or (b) the Blocker Investor Party (or any successor) shall merge with and into the Company with the Company surviving (the
“Surviving Company”), with the holders of interests in such Blocker Investor Party receiving (in the aggregate) a number of shares of Class A Common Stock equal to the number of LP Units held by such Blocker Investor Party
immediately prior to the merger along with any rights to which such holders of interests are entitled to under the Tax Receivable Agreement following such merger. Immediately prior to the consummation of any contribution or merger described in the
preceding sentence, the Blocker Investor Party merging or having its interests contributed (as applicable) shall hold (or be entitled to receive under Summit Holdings LP Agreement) an amount of cash sufficient (as estimated in the good faith
discretion of such Blocker Investor Party and taking into account any losses or 

  
 9 

 
other Tax attributes) to pay all Taxes of the Blocker Investor Party for any Tax period (or portion thereof) ending on or prior to the effective date of such contribution or merger. The Company
agrees to execute all documents, issue all necessary shares of Class A Common Stock and take all other actions to permit the foregoing transactions to be consummated at the request of each Blocker Investor Party. 

ARTICLE V. 
 GENERAL PROVISIONS

 5.1 Termination. Except for Section 3.3 hereof, this Agreement shall terminate on the earlier to occur of
(i) such time as the Blackstone Designator is no longer entitled to designate a Director pursuant to Section 2.1(a) hereof and (ii) the delivery of a written notice by the Blackstone Designator to the Company requesting that
this Agreement terminate. The VCOC Investors shall advise the Company when they collectively first cease to beneficially own any shares of Common Stock (or other securities of the Company into which such shares of Common Stock may be converted or
for which such shares of Common Stock may be exchanged), whereupon Section 3.3 hereof shall terminate. 
 5.2
Notices. Any notice, designation, request, request for consent or consent provided for in this Agreement shall be in writing and shall be either personally delivered, or mailed first class mail (postage prepaid) or sent by reputable
overnight courier service (charges prepaid) to the Company at the address set forth below and to any other recipient at the address indicated on the Company’s records, or at such address or to the attention of such other Person as the recipient
party has specified by prior written notice to the sending party. Notices and other such documents will be deemed to have been given or made hereunder when sent by facsimile (receipt confirmed) delivered personally, five (5) days after deposit
in the U.S. mail and one (1) day after deposit with a reputable overnight courier service. 
 The Company’s address is: 

Summit Materials, Inc. 
 1550
Wynkoop, 3rd Floor 
 Denver, Colorado 80202 

Attention: Chief Legal Officer 

Fax: (303) 893-6993 
 with a
copy (not constituting notice) to: 
 Simpson Thacher & Bartlett LLP 

425 Lexington Avenue 
 New York,
New York 10017 
 Attention: Edward P. Tolley III and Edgar J. Lewandowski 

Fax: (212) 455-2502 
 The
Blackstone Entities’ address is: 
 The Blackstone Group L.P. 

345 Park Avenue 
 New York, New
York 10154 
 Attention: Neil P. Simpkins 

Fax: [            ] 

  
 10 

 with a copy (not constituting notice) to: 

Simpson Thacher & Bartlett LLP 

425 Lexington Avenue 
 New York,
New York 10017 
 Attention: Edward P. Tolley III and Edgar J. Lewandowski 

Fax: (212) 455-2502 
 5.3
Amendment; Waiver. This Agreement may be amended, supplemented or otherwise modified only by a written instrument executed by the Company and the other parties hereto. Neither the failure nor delay on the part of any party hereto to
exercise any right, remedy, power or privilege under this Agreement shall operate as a waiver thereof, nor shall any single or partial exercise of any right, remedy, power or privilege preclude any other or further exercise of the same or of any
other right, remedy, power or privilege, nor shall any waiver of any right, remedy, power or privilege with respect to any occurrence be construed as a waiver of such right, remedy, power or privilege with respect to any other occurrence. No waiver
shall be effective unless it is in writing and is signed by the party asserted to have granted such waiver. 
 5.4 Further
Assurances. The parties hereto will sign such further documents, cause such meetings to be held, resolutions passed, exercise their votes and do and perform and cause to be done such further acts and things necessary, proper or advisable in
order to give full effect to this Agreement and every provision hereof. To the fullest extent permitted by law, the Company shall not directly or indirectly take any action that is intended to, or would reasonably be expected to result in,
Blackstone or any Blackstone Entity being deprived of the rights contemplated by this Agreement. 
 5.5 Assignment. This
Agreement will inure to the benefit of and be binding on the parties hereto and their respective successors and permitted assigns. This Agreement may not be assigned without the express prior written consent of the other parties hereto, and any
attempted assignment, without such consents, will be null and void; provided, however, that, without the prior written consent of the Company, a Blackstone Party may assign this Agreement, in whole or in part, to any of its
Permitted Assigns. 
 5.6 Third Parties. Except as provided for in Article II, Section 3.3 and
Section 4.1 hereof with respect to any Blackstone Entity, this Agreement does not create any rights, claims or benefits inuring to any person that is not a party hereto nor create or establish any third party beneficiary hereto. 

5.7 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware, without
regard to principles of conflicts of laws thereof. 

  
 11 

 5.8 Jurisdiction; Waiver of Jury Trial. In any judicial proceeding involving any
dispute, controversy or claim arising out of or relating to this Agreement, each of the parties unconditionally accepts the jurisdiction and venue of the courts of the State of Delaware or if jurisdiction over the matter is vested exclusively in
federal courts, the United States District Court for the District of Delaware, and the appellate courts to which orders and judgments thereof may be appealed. In any such judicial proceeding, the parties agree that in addition to any method for the
service of process permitted or required by such courts, to the fullest extent permitted by law, service of process may be made by delivery provided pursuant to the directions in Section 5.2 hereof. EACH OF THE PARTIES HEREBY WAIVES TO
THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW TRIAL BY JURY IN ANY JUDICIAL PROCEEDING INVOLVING ANY DISPUTE, CONTROVERSY OR CLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT. 

5.9 Specific Performance. Each party hereto acknowledges and agrees that in the event of any breach of this Agreement by any of
them, the other parties hereto would be irreparably harmed and could not be made whole by monetary damages. Each party accordingly agrees to waive the defense in any action for specific performance that a remedy at law would be adequate and agrees
that the parties, in addition to any other remedy to which they may be entitled at law or in equity, shall be entitled to specific performance of this Agreement without the posting of bond. 

5.10 Entire Agreement. This Agreement sets forth the entire understanding of the parties hereto with respect to the subject matter
hereof. There are no agreements, representations, warranties, covenants or understandings with respect to the subject matter hereof or thereof other than those expressly set forth herein and therein. This Agreement supersedes all other prior
agreements and understandings between the parties with respect to such subject matter. 
 5.11 Severability. If any provision of this
Agreement, or the application of such provision to any Person or circumstance or in any jurisdiction, shall be held to be invalid or unenforceable to any extent, (i) the remainder of this Agreement shall not be affected thereby, and each other
provision hereof shall be valid and enforceable to the fullest extent permitted by law, (ii) as to such Person or circumstance or in such jurisdiction such provision shall be reformed to be valid and enforceable to the fullest extent permitted
by law, and (iii) the application of such provision to other Persons or circumstances or in other jurisdictions shall not be affected thereby. 

5.12 Table of Contents, Headings and Captions. The table of contents, headings, subheadings and captions contained in this
Agreement are included for convenience of reference only, and in no way define, limit or describe the scope of this Agreement or the intent of any provision hereof. 

5.13 Grant of Consent. Any vote, consent or approval of, or designation by, or other action of, the Blackstone Designator
hereunder shall be effective if notice of such vote, consent, approval, designation or action is provided in accordance with Section 5.2 hereof by the Blackstone Party or Parties holding of record a majority of the Outstanding Summit
Interests then held of record by Blackstone Parties as of the latest date any such notice is so provided. 

  
 12 

 5.14 Counterparts. This Agreement and any amendment hereto may be signed in any
number of separate counterparts, each of which shall be deemed an original, but all of which taken together shall constitute one Agreement (or amendment, as applicable). 

5.15 Effectiveness. This Agreement shall become effective upon the Closing Date. 

5.16 No Recourse. This Agreement may only be enforced against, and any claims or cause of action that may be based upon, arise out
of or relate to this Agreement, or the negotiation, execution or performance of this Agreement may only be made against the entities that are expressly identified as parties hereto and no past, present or future Affiliate, director, officer,
employee, incorporator, member, manager, partner, stockholder, agent, attorney or representative of any party hereto shall have any liability for any obligations or liabilities of the parties to this Agreement or for any claim based on, in respect
of, or by reason of, the transactions contemplated hereby. 
 [Remainder of Page Intentionally Left Blank] 

  
 13 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the day and year first
above written. 
  

			
	 COMPANY

	
	 SUMMIT MATERIALS, INC.

		
	 By:
	 	  

	 Name:

	 Title:

  
 [Signature Page to
Summit Materials, Inc. Stockholders’ Agreement] 

 
			
	 BLACKSTONE PARTIES:

	
	 [SIGNATURE BLOCKS TO COME]

  

  
 [Signature Page to
Summit Materials, Inc. Stockholders’ Agreement]

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