Form of Co-Investment Units Subscription Agreement



 Exhibit 10.23 
 SAPPHIRE INDUSTRIALS CORP. 
 CO-INVESTMENT UNITS SUBSCRIPTION AGREEMENT 
 THIS CO-INVESTMENT UNITS SUBSCRIPTION AGREEMENT (this “Agreement”) is made as of the ___ day of ________________, by and between Sapphire
Industrials Corp., a Delaware corporation (the “Company”), Lazard Funding Limited LLC (“Purchaser”) and Lazard Group LLC (“Lazard Group”). 
 WHEREAS, Purchaser has agreed, pursuant to the Rule 10b5-1 Stock Purchase Plan, dated as of __________, 2007, as a condition of Citigroup Global Markets Inc.’s purchase of the Company’s units (the
“Units”) in the Company’s initial public offering (the “Offering”) to place limit orders for up to $40,000,000 of the Company’s common stock, par value $0.001 per share (the “Aftermarket Shares”) for a period
ending on the business day immediately preceding the record date for the meeting of stockholders at which a Business Combination (as such term is defined in the Amended and Restated Certificate of Incorporation of the Company) is to be approved. The
limit orders will require Purchaser to purchase any of the Company’s shares of Common Stock offered for sale at or below a price equal to the per share value of the Trust Account (as defined in that certain Trust Account Agreement, dated as of
the date of the effective date of the registration statement relating to the Offering, by and between the Company and Mellon Bank, N.A. as account agent thereunder) as of the date of the Company’s most recent annual report on Form 10-K or
quarterly report on Form 10-Q, as applicable, filed prior to such purchase. The purchase of such shares will be made by Citigroup Global Markets Inc. or another broker dealer mutually agreed upon by Citigroup Global Markets Inc. and Purchaser. It is
intended that these purchases will comply with Rule 10b-18 under the Securities Exchange Act of 1934, as amended, and the broker’s purchase obligation is otherwise subject to applicable law, including Regulation M which may prohibit purchases
under certain circumstances. 
 WHEREAS, the Company desires to commit to issue and sell, and Purchaser desires to commit to purchase and
acquire, Co-Investment Units (as defined herein), to the extent that Purchaser does not purchase in full $40,000,000 of the Aftermarket Shares, on the terms and conditions hereinafter set forth; 
 NOW, THEREFORE, for and in consideration of the promises and mutual covenants set forth herein, it is agreed between the parties as follows: 

1. Commitment To Purchase Co-Investment Units. Subject to and immediately prior to the consummation of a Business Combination, Purchaser hereby
agrees to apply any portion of the $40,000,000 not used for open market purchases of Aftermarket Shares to subscribe for and purchase from the Company, and the Company hereby agrees to issue and sell such portion to Purchaser, units (each an
“Co-Investment Unit”) at a price of $10.00 per unit. Each Co-Investment Unit consists of one share of the common stock of the Company, par value $0.001 per share (the “Common Stock”), and one warrant (a “Warrant”)
exercisable for one share of Common Stock. Each Warrant shall entitle the holder thereof to purchase one share of the Common Stock at an exercise price of $7.50, in accordance with the terms of the Warrant substantially as set forth in the Form of
Warrant Agreement attached hereto as Exhibit A (the “Warrant Agreement”) to be entered into by and between the Company and Mellon Investor Services LLC and shall be subject to the terms of the Warrant Agreement upon execution thereof. The
closing of the purchase and sale of the Co-Investment Units hereunder, including payment for and delivery of the Co-Investment Units, shall occur at the offices of the Company immediately prior to, and subject to consummation of, the Business
Combination. 
 2. Payment of Purchase Price. The purchase price for the Co-Investment Units shall be tendered in full at the closing
by one or a combination of the following means: 
 (a) wiring of immediately available United States funds to an account for
the benefit of the Company, pursuant to wire instructions provided by the Company in advance; or 
  

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 (b) by delivery of a cashiers check to the Company of immediately available United States
funds. 
 3. Limitations on Transfer. Purchaser shall not assign, hypothecate, donate, encumber or otherwise dispose of any interest
in the Co-Investment Units (and the underlying securities) during the respective “Escrow Period” (as such term is defined in a securities escrow agreement substantially in the form attached hereto as Exhibit B (the “Securities Escrow
Agreement”), dated on or about the effective date of the Offering to be entered into by and between the Company and Mellon Investor services LLC) for the Co-Investment Units, except (i) as otherwise permitted by the Securities Escrow
Agreement, (ii) in compliance with applicable securities laws and (iii) in compliance with the Warrant Agreement. 
 4.
Restrictive Legends. All certificates representing the Co-Investment Units (and any underlying securities thereof) shall have endorsed thereon legends in substantially the following forms (in addition to any other legend which may be required
by other agreements between the parties hereto): 
 (a) “THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THE SECURITIES MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT AS TO THE SECURITIES UNDER SAID ACT OR AN OPINION OF COUNSEL
SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.” 
 (b) “THE SECURITIES REPRESENTED BY THIS
CERTIFICATE MAY NOT BE ASSIGNED, HYPOTHECATED, DONATED, ENCUMBERED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF EXCEPT IN ACCORDANCE WITH THAT CERTAIN SECURITIES ESCROW AGREEMENT DATED __________, 2007, AND THAT CERTAIN WARRANT AGREEMENT DATED AS OF
__________, 2007, COPIES OF WHICH ARE AVAILABLE FOR INSPECTION AT THE OFFICES OF THE COMPANY.” 
 (c) Any legend required
by appropriate blue sky officials. 
 5. Investment Representations. In connection with the purchase of the Co-Investment Units,
Purchaser represents to the Company the following: 
 (a) Purchaser has been furnished with all materials relating to the
Company’s business affairs and financial condition and materials related to the offer and sale of the Co-Investment Units that have been requested by Purchaser and has acquired sufficient information about the Company to reach an informed and
knowledgeable decision to acquire the Co-Investment Units. Purchaser has been afforded the opportunity to ask questions of the executive officers and directors of the Company. Purchaser understands that its investment in the Co-Investment Units
involves a high degree of risk. Purchaser has sought such accounting, legal and tax advice as Purchaser has considered necessary to make an informed investment decision with respect to Purchaser’s acquisition of the Co-Investment Units.
Purchaser has such knowledge and expertise in financial and business matters, knows of the high degree of risk associated with investments generally and particularly investments in the securities of companies in the development stage such as the
Company, is capable of evaluating the merits and risks of an investment in the Co-Investment Units, and is able to bear the economic risk of an investment in the Co-Investment Units in the amount contemplated hereunder. Purchaser has adequate means
of providing for its current financial needs and contingencies and will have no current or anticipated future needs for liquidity which would be jeopardized by the investment in the Co-Investment Units. Purchaser can afford a complete loss of its
investment in the 

  

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Co-Investment Units. Purchaser is purchasing the Co-Investment Units for investment for Purchaser’s own account only and not with a view to, or for
resale in connection with, any “distribution” thereof within the meaning of the Securities Act of 1933, as amended (the “Act”). Purchaser understands that the Company is a blank check development stage company recently formed for
the purpose of consummating a Business Combination and understands that there is no assurance as to the future performance of the Company and that the Company may never effectuate a Business Combination. 
 (b) Purchaser understands that the Co-Investment Units (and the securities underlying the Co-Investment Units) have not been registered
under the Act or any state securities law by reason of a specific exemption therefrom, and that the Company is relying on the truth and accuracy of, and Purchaser’s compliance with, the representations and warranties and agreements of Purchaser
set forth herein to determine the availability of such exemptions and the eligibility of Purchaser to acquire such Co-Investment Units, including, but not limited to, the bona fide nature of Purchaser’s investment intent as expressed herein.

 (c) Purchaser further acknowledges and understands that the Co-Investment Units (and the securities underlying the
Co-Investment Units) must be held indefinitely, subject to any expiration, unless the Co-Investment Units (and the securities underlying the Co-Investment Units) are subsequently registered under the Act or an exemption from such registration is
available. Purchaser understands that the certificates evidencing the Co-Investment Units (and the securities underlying the Co-Investment Units) will be imprinted with a legend which prohibits the transfer of the Co-Investment Units (and the
securities underlying the Co-Investment Units) unless the Co-Investment Units (and the securities underlying the Co-Investment Units) are registered or such registration is not required in the opinion of counsel for the Company. 
 (d) Purchaser is familiar with the provisions of Rule 144 under the Act, as in effect from time to time (“Rule 144”), which, in
substance, permit limited public resale of “restricted securities” acquired, directly or indirectly, from the issuer thereof (or from an affiliate of such issuer), in a non-public offering subject to the satisfaction of certain conditions.
Unless the Company registers the Co-Investment Units (and the securities underlying the Co-Investment Units) under the Act, the Co-Investment Units (and the securities underlying the Co-Investment Units) may be resold by Purchaser only in certain
limited circumstances subject to the provisions of Rule 144, which requires, among other things: (i) the availability of certain public information about the Company and (ii) the resale occurring following the required holding period under
Rule 144 after Purchaser has purchased, and made full payment of (within the meaning of Rule 144), the securities to be sold. 
 (e) Purchaser further understands that at the time Purchaser wishes to sell the Co-Investment Units there may be no public market upon which to make such a sale, and that, even if such a public market then exists, the Company may not be
satisfying the current public information requirements of Rule 144, and that, in such event, Purchaser would be precluded from selling the Co-Investment Units (and the securities underlying the Co-Investment Units) under Rule 144 even if the minimum
holding period requirement had been satisfied. Notwithstanding Sections 6(d) and (e) hereof, Purchaser understands that it may be considered a promoter of the Company and understands that it is the position of the Securities and Exchange
Commission (the “SEC”) that promoters or affiliates of a blank check company and their transferees, both before and after a Business Combination, would act as an “underwriter” under the Act when reselling the securities of a
blank check company. Accordingly, the SEC believes that those securities can be resold only through a registered offering and that Rule 144 would not be available for those resale transactions despite technical compliance with the requirements of
Rule 144. 
 (f) Purchaser represents that Purchaser is an “accredited investor” as that term is defined in Rule 501
of Regulation D promulgated by the SEC under the Act. 
  

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 (g) Purchaser has all necessary power and authority to enter into this Agreement and to
consummate the transactions contemplated hereby. All action necessary to be taken by Purchaser to authorize the execution, delivery and performance of this Agreement and all other agreements and instruments delivered by Purchaser in connection with
the transactions contemplated hereby has been duly and validly taken, and this Agreement has been duly executed and delivered by Purchaser. Subject to the terms and conditions of this Agreement, this Agreement constitutes the valid, binding and
enforceable obligation of Purchaser, enforceable in accordance with its terms, except as enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer or similar laws of general
application now or hereafter in effect affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforcement is sought in a proceeding at law or in equity); and (ii) the applicability of the
federal and state securities laws and public policy as to the enforceability of the indemnification provisions of this Agreement. The purchase by Purchaser of the Co-Investment Units does not conflict with the organizational documents of Purchaser
or with any material contract by which Purchaser or its property is bound, or any laws or regulations or decree, ruling or judgment of any court applicable to Purchaser or its property. The principal place of business of Purchaser is as set forth on
the signature page hereto. 
 (h) Purchaser did not decide to enter into this Agreement as a result of any general
solicitation or general advertising within the meaning of Rule 502(c) of the Securities Act. 
 (i) Purchaser understands that
no United States federal or state agency or any other government or governmental agency has passed on or made any recommendation or endorsement of the Co-Investment Units or the fairness or suitability of the investment in the Co-Investment Units,
nor have such authorities passed upon or endorsed the merits of the offering of the Co-Investment Units. 
 6. Guarantee. Lazard Group
hereby irrevocably and unconditionally guarantees as a primary obligor the obligations of Purchaser pursuant to Paragraph 1 hereunder. Solely in the event Lazard Group purchases Co-Investment Units pursuant to this Section 6, the
representations and warranties of Purchaser in Section 5 of this Agreement shall be deemed to be the representations and warranties of Lazard Group. 
 7. Company Representations and Warranties. The Company hereby represents and warrants to Purchaser that the Company has all necessary corporate power and authority to enter into this Agreement and to consummate
the transactions contemplated hereby. All corporate action necessary to be taken by the Company to authorize the execution, delivery and performance of this Agreement and all other agreements and instruments delivered by the Company in connection
with the transactions contemplated hereby has been duly and validly taken and this Agreement has been duly executed and delivered by the Company. Subject to the terms and conditions of this Agreement, this Agreement constitutes the valid, binding
and enforceable obligation of the Company, enforceable in accordance with its terms, except as enforceability may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer or similar laws of general
application now or hereafter in effect affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforcement is sought in a proceeding at law or in equity); and (ii) the applicability of the
federal and state securities laws and public policy as to the enforceability of the indemnification provisions of this Agreement. The sale by the Company of the Co-Investment Units does not conflict with the certificate of incorporation or by-laws
of the Company or any material contract by which the Company or its property is bound, or any federal or state laws or regulations or decree, ruling or judgment of any United States or state court applicable to the Company or its property.

 8. Indemnification. Purchaser hereby agrees to indemnify and hold harmless the Company and the Company’s officers, directors,
stockholders, employees, agents, and attorneys against any and all losses, 

  

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claims, demands, liabilities and expenses (including reasonable legal or other expenses incurred by each such person in connection with defending or
investigating any such claims or liabilities, whether or not resulting in any liability to such person or whether incurred by the indemnified party in any action or proceeding between the indemnitor and indemnified party or between the indemnified
party and any third party) to which any such indemnified party may become subject, insofar as such losses, claims, demands, liabilities and expenses (a) arise out of or are based upon any untrue statement or alleged untrue statement of a
material fact made by Purchaser and contained herein, or (b) arise out of or are based upon any breach by Purchaser of any representation, warranty or agreement made by Purchaser contained herein. 
 9. Miscellaneous. 
 (a) Notices. All notices required or permitted hereunder shall be in writing and shall be deemed effectively given: (i) upon personal delivery to the party to be notified, (ii) when sent by confirmed facsimile if sent
during normal business hours of the recipient, and if not during normal business hours of the recipient, then on the next business day, (iii) five calendar days after having been sent by registered or certified mail, return receipt requested,
postage prepaid, or (iv) one business day after deposit with a nationally recognized overnight courier, specifying next day delivery, with written verification of receipt. All communications shall be sent to the other party hereto at such
party’s address hereinafter set forth on the signature page hereof, or at such other address as such party may designate by ten days advance written notice to the other party hereto. 
 (b) Successors and Assigns. This Agreement shall inure to the benefit of the successors and assigns of the Company and, subject to
the restrictions on transfer herein set forth, shall be binding upon Purchaser and Purchaser’s successors and assigns. 
 (c) Attorneys’ Fees; Specific Performance. Purchaser shall reimburse the Company for all costs incurred by the Company in enforcing the performance of, or protecting its rights under, any part of this Agreement, including
reasonable costs of investigation and attorneys’ fees. 
 (d) Governing Law; Venue. This Agreement shall be
governed by and construed in accordance with the laws of the State of Delaware without regard to the principles of conflicts of law thereof. The parties agree that any action brought by either party to interpret or enforce any provision of this
Agreement shall be brought in, and each party agrees to, and does hereby, submit to the jurisdiction and venue of, the appropriate state or federal court for the district encompassing the Company’s principal place of business. 
 (e) Further Execution. The parties agree to take all such further action(s) as may reasonably be necessary to carry out and
consummate this Agreement as soon as practicable, and to take whatever steps may be necessary to obtain any governmental approval in connection with or otherwise qualify the issuance of the securities that are the subject of this Agreement.

 (f) Independent Counsel. Purchaser acknowledges that this Agreement has been prepared on behalf of the Company by
Skadden, Arps, Slate, Meagher & Flom LLP, counsel to the Company and that Skadden, Arps, Slate, Meagher & Flom LLP does not represent, and is not acting on behalf of, Purchaser. Purchaser has been provided with an opportunity to
consult with Purchaser’s own counsel with respect to this Agreement. 
 (g) Entire Agreement; Amendment. This
Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes and merges all prior agreements or understandings, whether written or oral. This Agreement may not be amended, modified or
revoked, in whole or in part, except by an agreement in writing signed by each of the parties hereto. 
  

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 (h) Severability. If one or more provisions of this Agreement are held to be
unenforceable under applicable law, the parties agree to renegotiate such provision in good faith. In the event that the parties cannot reach a mutually agreeable and enforceable replacement for such provision, then (i) such provision shall be
excluded from this Agreement, (ii) the balance of the Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of the Agreement shall be enforceable in accordance with its terms. 
 (i) Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original and all of
which together shall constitute one instrument. This Agreement or any counterpart may be executed via facsimile or electronic mail transmission, and any such executed facsimile or electronic mail copy shall be treated as an original. 
 (j) Survival. The representations and warranties contained herein will survive the delivery of, and the payment for, the
Co-Investment Units. 
 (k) Waiver of Jury Trial. Each party hereto hereby irrevocably and unconditionally waives the
right to a trial by jury in any action, suit, counterclaim or other proceeding (whether based on contract, tort or otherwise) arising out of, connected with or relating to this Agreement, the transactions contemplated hereby, or the actions of
Purchaser in the negotiation, administration, performance or enforcement hereof. 
  

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

					
	COMPANY:
	
	SAPPHIRE INDUSTRIALS CORP.
		
	By:	 	 
		 	Name:	 	Donald G. Drapkin
		 	Title:	 	Chief Executive Officer and President



					
	
	PURCHASER:
	
	LAZARD FUNDING LIMITED LLC
		
	By:	 	 
		 	Name:	 	
		 	Title:	 	
		 	Address:	 	
	
	LAZARD GROUP LLC
		
	By:	 	 
		 	Name:	 	
		 	Title:	 	
		 	Address:	 	









 Exhibit A 
 [Filed as Exhibit 4.4] 







 Exhibit B 
 [Filed as Exhibit 10.10]