EX-10.4





 Exhibit 10.4 

EXECUTION VERSION 

BACKSTOP AGREEMENT 
 This
Backstop Agreement (this “Agreement”) is entered into as of June 17, 2021, by and among GS Acquisition Holdings Corp II, a Delaware corporation (the “Company”), and GSAM Holdings LLC, a Delaware limited
liability company (the “Purchaser”). Capitalized terms used but not defined in this Agreement shall have the meaning ascribed to such terms in that certain Business Combination Agreement, dated as of the date hereof, by and among
the Company, Mirion Technologies (TopCo), Ltd., a Jersey private company limited by shares (“Mirion”), CCP IX LP No. 1, CCP IX LP No. 2, CCP IX Co-Investment LP and CCP IX Co-Investment No. 2 LP (the “Charterhouse Parties”), each acting by their general partner, Charterhouse General Partners (IX) Limited, and the other parties named therein (as amended,
modified, supplemented or waived from time to time in accordance with its terms, the “Business Combination Agreement”). 

WHEREAS, in connection with the entry into the Business Combination Agreement, Purchaser has allocated and committed up to $125,000,000.00 to
subscribe for a number of shares of New SPAC Class A Common Shares subject to the amount of Existing SPAC Common Stock that is redeemed (and for which redemptions are not subsequently withdrawn) by Existing SPAC Stockholders in connection with
the SPAC Special Meeting, if any (the “GS Stockholder Redemptions”); and 
 WHEREAS, the Purchaser is now entering into
this Agreement with the Company, whereby at the Closing under the Business Combination Agreement, the Purchaser will acquire, and the Company will issue and sell to the Purchaser, New SPAC Class A Common Shares, on a private placement basis,
solely to the extent necessary to fund GS Stockholder Redemptions on a share for share basis and in the amount determined pursuant to Section 2(a)(i) hereof and subject to the limitations set forth herein (the “Backstop Purchase
Shares”). 
 NOW, THEREFORE, in consideration of the promises, representations, warranties and the mutual covenants contained in
this Agreement, and for other good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby acknowledged, the parties hereto agree as follows: 

1. Backstop Limit; Backstop Notice. 

(a) Backstop Limit. Notwithstanding anything to the contrary in this Agreement, the Purchaser shall never be required to fund an amount
in connection with the GS Stockholder Redemptions that is greater than $125,000,000.00 (the “Backstop Limit”). 
 (b)
Backstop Notice. On the date by which GS Stockholder Redemptions are required to be made in accordance with the Company’s certificate of incorporation, as it may be amended from time to time (the “Certificate of
Incorporation”) (which date is two (2) Business Days prior to the date of the SPAC Special Meeting), if and only to the extent that the GS Stockholder Redemptions are of such an amount that they would cause the Cash Shortfall (as such
term is defined in the Business Combination Agreement) to be a positive value (i.e. greater than $0 (zero dollars), calculated without including the Backstop Amount (as such term is defined in the Business Combination Agreement) in Available Closing
Cash (as such term is defined in the Business Combination Agreement) (the “Threshold GS Redemptions Amount”), the Company shall deliver a written notice (the “Backstop Notice”) to the Purchaser setting forth: 












 (i) the total number of shares of Existing SPAC Common Stock subject to the
GS Stockholder Redemptions, 
 (ii) the Subscription Amount (as defined below), 

(iii) the resulting BPS Purchase Price (as defined below) (as calculated in accordance with Section 2(a)(i)), which amount, for
the avoidance of doubt, shall in no event be greater than the Backstop Limit; and 
 (iv) the Company’s wire
instructions. 
 “Subscription Amount” means a number of Backstop Purchase Shares equal to the lesser of (x) 12,500,000, and (y)
that number of Backstop Purchase Shares, if any, that would be required to be sold hereunder, at a purchase price of $10.00 per share, such that the Cash Shortfall (as such term is defined in the Business Combination Agreement) would be equal to $0
(zero dollars). Notwithstanding the forgoing, for the avoidance of doubt, the “Subscription Amount” shall not include any shares of New SPAC Class A Common Shares in respect of GS Stockholder Redemptions that have been subsequently
withdrawn in accordance with the Company’s Certificate of Incorporation and Applicable Law. A Backstop Notice cannot be made and the Company shall not be permitted to deliver a Backstop Notice or cause the Purchaser to acquire any Backstop
Purchase Shares to the extent the GS Stockholder Redemptions do not meet the Threshold GS Redemptions Amount. Only one (1) Backstop Notice may be delivered hereunder. 

2. Sale and Purchase. 

(a) Backstop Purchase Shares. 

(i) Subject to the terms and conditions hereof, following delivery of the Backstop Notice by the Company to the Purchaser
hereunder, the Company shall issue and sell to the Purchaser, and the Purchaser shall purchase from the Company a number of Backstop Purchase Shares equal to the Subscription Amount for an aggregate purchase price equal to the product of (x) $10.00
multiplied by (y) the number of Backstop Purchase Shares to be issued and sold hereunder (such aggregate purchase price, the “BPS Purchase Price”). The numbers of shares, per share amounts and purchase price of the
Backstop Purchase Shares and the BPS Purchase Price, as applicable, shall be appropriately adjusted to reflect any stock split, stock dividend, stock combination, recapitalization or the like occurring after the date hereof. 

(ii) The delivery of the Backstop Notice hereunder shall serve as notice to the Purchaser that the Purchaser will be required
to pay the BPS Purchase Price, and acquire the Backstop Purchase Shares, at the BPS Closing (as defined below). 
 (iii) The
closing of the sale of the Backstop Purchase Shares (the “BPS Closing”) shall be held on the Closing Date. At the BPS Closing, the Company will issue to the Purchaser the Backstop Purchase Shares, registered in the name of the
Purchaser, against (and concurrently with) the payment of the BPS Purchase Price to the Company by wire transfer of immediately available funds to the account notified to the Purchaser by the Company in the Backstop Notice. 

  
 2 













 (b) Delivery of Backstop Purchase Shares. 

(i) The Company shall register the Purchaser as the owner of the Backstop Purchase Shares purchased by the Purchaser hereunder
(individually or collectively, the “Securities”) in the register of stockholders of the Company and with the Company’s transfer agent by book entry on or promptly after (but in no event more than two (2) Business Days
after) the date of the BPS Closing. 
 (ii) Each register and book entry for the Backstop Purchase Shares purchased by the
Purchaser hereunder shall contain a notation, and each certificate (if any) evidencing the Backstop Purchase Shares shall be stamped or otherwise imprinted with a legend, in substantially the following form: 

“THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF
ANY STATE OR OTHER JURISDICTION, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT AND LAWS.” 
 (c) Registration Rights. The
Purchaser shall enter into the Registration Rights Agreement at Closing, and the Purchaser shall have certain registration rights with respect to the Backstop Purchase Shares as referenced therein (the “Registration Rights”). 

3. Representations and Warranties of the Purchaser. The Purchaser represents and warrants to the Company as follows, as of the
date hereof and as of the BPS Closing: 
 (a) Organization and Power. The Purchaser is duly organized, validly existing, and in good
standing under the laws of the jurisdiction of its formation (if the concept of “good standing” is a recognized concept in such jurisdiction) and has all requisite power and authority to carry on its business as presently conducted and as
proposed to be conducted. 
 (b) Authorization. The Purchaser has full power and authority, including any necessary corporate or other
organizational authority, to enter into and perform its obligations under this Agreement and any other instrument to be entered into, executed and delivered by or on behalf of the Purchaser in connection with the purchase of the Backstop Purchase
Shares. This Agreement, when executed and delivered by the Purchaser, will constitute the valid and legally binding obligation of the Purchaser, enforceable in accordance with its terms, except (a) as limited by applicable bankruptcy,
insolvency, reorganization, moratorium, fraudulent conveyance and any other laws of general application affecting enforcement of creditors’ rights generally, (b) as limited by laws relating to the availability of specific performance,
injunctive relief or other equitable remedies, or (c) to the extent the indemnification provisions contained in the Registration Rights may be limited by applicable federal or state securities laws. The signature of the person(s) signing on
behalf of the Purchaser is binding on the Purchaser. 

  
 3 













 (c) Compliance with Other Instruments. The execution, delivery and performance by the
Purchaser of this Agreement and the consummation by the Purchaser of the transactions contemplated by this Agreement will not result in any violation or default (i) of any provisions of its organizational documents, if applicable, (ii) of
any instrument, judgment, order, writ or decree to which it is a party or by which it is bound, (iii) under any note, indenture or mortgage to which it is a party or by which it is bound, (iv) under any lease, agreement, contract or
purchase order to which it is a party or by which it is bound or (v) of any provision of federal or state statute, rule or regulation applicable to the Purchaser, in each case (other than clause (i)), which would have a material adverse effect
on the Purchaser or its ability to consummate the transactions contemplated by this Agreement. 
 (d) No Governmental or other
Authorization Required; Consents. Except for any filings and approvals required pursuant to the terms of the Business Combination Agreement, filings with the SEC under the Exchange Act and such other reports under, and such other compliance
with, the Exchange Act as may be required in connection with this Agreement, or as may have already been obtained, no authorization or approval or other action by, and no notice to or filing with, any Governmental Authority or any other person will
be required to be obtained or made by the Purchaser in connection with the due execution, delivery and performance by the Purchaser of this Agreement. 

(e) Restricted Securities. The Purchaser understands that the sale of the Securities to the Purchaser has not been, and will not be,
registered under the Securities Act, by reason of a specific exemption from the registration provisions of the Securities Act which depends upon, among other things, the bona fide nature of the investment intent and the accuracy of the
Purchaser’s representations as expressed herein. The Purchaser understands that the Securities are “restricted securities” under applicable U.S. federal and state securities laws and that, pursuant to these laws, the Purchaser must
hold the Securities indefinitely unless they are registered with the SEC and qualified by state authorities, or an exemption from such registration and qualification requirements is available. The Purchaser acknowledges that the Company has no
obligation to register or qualify the Securities for resale, except pursuant to the Registration Rights. The Purchaser further acknowledges that if an exemption from registration or qualification is available, it may be conditioned on various
requirements including, but not limited to, the time and manner of sale, the holding period for the Securities, and requirements relating to the Company which are outside of the Purchaser’s control, and which the Company is under no obligation
and may not be able to satisfy. The Purchaser acknowledges that the Company filed a registration statement on Form S-1 to consummate its initial public offering with the SEC (the “IPO”). The
Purchaser understands that the sale of the Securities hereunder is not, and is not intended to be, part of the IPO, and that the Purchaser will not be able to rely on the protection of Section 11 of the Securities Act with respect to such sale
of the Securities. 
 (f) Review of Disclosed Material. The Purchaser is in receipt of and has carefully read and understands the
following items (the “Disclosed Material”): 

  
 4 













 (i) the prospectus filed by the Company with the SEC to consummate its IPO
(the “Prospectus”); 
 (ii) each filing made by the Company with the SEC following the filing of the
Prospectus; and 
 (iii) the Business Combination Agreement (including any amendment thereto) and the New SPAC Certificate of
Incorporation and New SPAC Bylaws, each of which is exhibited thereto. 
 (g) High Degree of Risk. The Purchaser understands that its
agreement to purchase the Securities involves a high degree of risk which could cause the Purchaser to lose all or part of its investment, and the Purchaser has the ability to bear the economic risks of an investment in Securities, including a
complete loss of its investment. Further, the Purchaser has carefully read, considered and understands (i) any risks identified in the Disclosed Material, and (ii) the risks related to the Transactions, the Company, Mirion and the
Securities, and has had the opportunity to retain, at its own expense, and relied upon, appropriate professional advice regarding the financial, taxation and legal implications, risk and consequences of the foregoing 

(h) Accredited Investor. The Purchaser is an “accredited investor” as defined in Rule 501(a) of Regulation D promulgated under
the Securities Act. 
 (i) Adequacy of Financing. The Purchaser has, or will have at the BPS Closing, available to it sufficient clear
funds to satisfy its obligations under this Agreement, without restriction or conditions on payment to the Company except as provided hereunder. 

(j) Purchaser’s Knowledge and Skill. The Purchaser has knowledge, skill and experience in financial, business and investment
matters relating to investments of this type and is capable of evaluating the merits and risks of such investment and protecting its interests in connection with the acquisition of Backstop Purchase Shares. 

(k) Own Investigations. In making its investment decision to purchase Securities, the Purchaser is relying solely on investigations made
by it and its representatives and its assessment, and the assessment of any of its professional advisers, of the merits of an acquisition of Securities. 

(l) No SEC Approval. The Securities have not been approved or disapproved by the SEC or any state securities commission, nor has the SEC
or any state securities commission passed upon the accuracy or adequacy of any representations by the Company. 
 (m) No Other
Representations or Warranties. The Purchaser acknowledges that neither the Company nor any of its representatives has made or makes any representation or warranty to the Purchaser in respect of the Company, Mirion or the Transactions other than,
in the case of the Company, the representations and warranties contained in this Agreement. 

  
 5 













 4. Representations and Warranties of the Company. The Company represents and
warrants to the Purchaser as follows: 
 (a) Incorporation and Corporate Power. The Company is validly existing and in good standing
under the laws of the State of Delaware, with all corporate power and authority to own, lease and operate its properties and conduct its business as presently conducted and to enter into, deliver and perform its obligations under this Agreement.

 (b) Capitalization. The authorized share capital of the Company consists, as of the date hereof, of: 

(i) 500,000,000 shares of Class A common stock, par value $0.0001 per share, 75,000,000 of which are issued and
outstanding, and all of the outstanding shares of Class A common stock have been duly authorized, are fully paid and nonassessable and were issued in compliance with all Applicable Laws; 

(ii) 50,000,000 shares of Class B common stock, par value $0.0001 per share, 18,750,000 of which are issued and
outstanding, and all of the outstanding shares of Class B common stock have been duly authorized, are fully paid and nonassessable and were issued in compliance with all Applicable Laws; and 

(iii) 5,000,000 shares of Existing SPAC Preferred Stock, none of which are issued and outstanding. 

(c) Authorization. All corporate action required to be taken by the Company’s Board of Directors and shareholders in order to
authorize the Company to enter into this Agreement, and to issue the Backstop Purchase Shares at the BPS Closing has been taken or will be taken prior to the BPS Closing, as applicable. All action on the part of the shareholders, directors and
officers of the Company necessary for the execution and delivery of this Agreement, the performance of all obligations of the Company under this Agreement to be performed as of the BPS Closing, and the issuance and delivery of the Backstop Purchase
Shares and the securities issuable upon conversion or exercise (in each case, if applicable) of the Backstop Purchase Shares has been taken or will be taken prior to the BPS Closing, as applicable. This Agreement, when executed and delivered by the
Company, shall constitute the valid and legally binding obligation of the Company, enforceable against the Company in accordance with its terms except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent
conveyance, or other laws of general application relating to or affecting the enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief, or other equitable
remedies, or (iii) to the extent the indemnification provisions contained in the Registration Rights may be limited by applicable federal or state securities laws. 

(d) Valid Issuance of Backstop Purchase Shares. The Backstop Purchase Shares, when issued, sold and delivered in accordance with the
terms and for the consideration set forth in this Agreement and registered in the register of members of the Company, will be validly issued, fully paid and nonassessable and free of all preemptive or similar rights, liens, encumbrances and charges
with respect to the issue thereof and restrictions on transfer, other than restrictions on transfer specified under this Agreement, applicable state and federal securities laws and liens or encumbrances created by or imposed by the Purchaser.
Assuming the accuracy of the representations of the Purchaser in this Agreement and subject to the filings described in Section 4(e) below, the Backstop Purchase Shares will be issued in compliance with all applicable federal and state securities
laws. 

  
 6 













 (e) Governmental Consents and Filings. Assuming the accuracy of the representations
and warranties made by the Purchaser in this Agreement, no consent, approval, order or authorization of, or registration, qualification, designation, declaration or filing with, any federal, state or local governmental authority is required on the
part of the Company in connection with the consummation of the transactions contemplated by this Agreement, except for any filings required pursuant to Regulation D of the Securities Act, applicable state securities laws, and pursuant to the
Registration Rights. 
 (f) Compliance with Other Instruments. The execution, delivery and performance of this Agreement and the
consummation of the transactions contemplated by this Agreement by the Company will not result in any violation or default (i) of any provisions of the Company’s Certificate of Incorporation or its other governing documents, (ii) of
any instrument, judgment, order, writ or decree to which the Company is a party or by which the Company is bound, (iii) under any note, indenture or mortgage to which the Company is a party or by which the Company is bound, (iv) under any
lease, agreement, contract or purchase order to which the Company is a party or by which the Company is bound or (v) of any provision of federal or state statute, rule or regulation applicable to the Company, in each case (other than clause
(i)) which would have a material adverse effect on the Company or its ability to consummate the transactions contemplated by this Agreement. 

(g) Limited Operations and Operating History. As of the date hereof, the Company has not conducted any operations other than
organizational activities and activities in connection with its IPO, its search for a potential business combination and financing in connection therewith. 

(h) Absence of Litigation. As of the date hereof, there is no action, suit, proceeding, inquiry or investigation before or by any court,
public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company, threatened against or affecting the Company or any of the Company’s officers or directors, whether of a civil or criminal nature
or otherwise, in their capacities as such. 
 (i) No General Solicitation. Neither the Company, nor any of its officers, directors,
employees, agents or shareholders has either directly or indirectly, including through a broker or finder, (i) engaged in any general solicitation, or (ii) published any advertisement in connection with the sale of the Backstop Purchase
Shares. 
 (j) No Other Representations and Warranties; Non-Reliance. Except for the specific
representations and warranties contained in this Section 4 and in any certificate or agreement delivered pursuant hereto, the Company has not made, does not make and shall not be deemed to make any other express or implied representation or
warranty with respect to the Company, the sale and purchase of the Backstop Purchase Shares, the IPO, the Transactions or a potential business combination, and the Company disclaims any such representation or warranty. Except for the specific
representations and warranties expressly made by the Purchaser in Section 3 of this Agreement and in any certificate or agreement delivered pursuant hereto, the Company specifically disclaims that it is relying upon any other representations or
warranties that may have been made by the Purchaser. Notwithstanding anything to the contrary in this Agreement, nothing in this Section 4(j) shall limit any claim or cause of action (or recovery in connection therewith) with respect to fraud.


  
 7 













 5. Trust Account. Notwithstanding anything to the contrary set forth
herein, the Purchaser acknowledges that the Company has established a trust account containing the proceeds of its IPO and from certain private placements (collectively, with interest accrued from time to time thereon, the “Trust
Account”). The Purchaser agrees that (i) it has no right, title, interest or claim of any kind in or to any monies held in the Trust Account, and (ii) it shall have no right of set-off or
any right, title, interest or claim of any kind (“Claim”) to, or to any monies in, the Trust Account, in each case in connection with this Agreement, and hereby irrevocably and unconditionally waives any Claim to, or to any monies
in, the Trust Account that it may have in connection with this Agreement; provided, however, that nothing in this Section 5 shall be deemed to limit Purchaser’s right, title, interest or claim to the Trust Account by virtue
of such Purchaser’s record or beneficial ownership of securities of the Company, including, but not limited to, any redemption right with respect to any such securities of the Company. In the event the Purchaser has any Claim against the
Company under this Agreement, the Purchaser shall pursue such Claim solely against the Company and its assets outside the Trust Account and not against the property or any monies in the Trust Account. The Purchaser agrees and acknowledges that such
waiver is material to this Agreement and has been specifically relied upon by the Company to induce the Company to enter into this Agreement and the Purchaser further intends and understands such waiver to be valid, binding and enforceable under
Applicable Law. In the event the Purchaser, in connection with this Agreement, commences any action or proceeding which seeks, in whole or in part, relief against the funds held in the Trust Account or distributions therefrom or against any of the
Company’s stockholders, whether in the form of monetary damages or injunctive relief, the Purchaser shall be obligated to pay to the Company all of its legal fees and costs in connection with any such action in the event that the Company
prevails in such action or proceeding. 
 6. BPS Closing Conditions. 

(a) The obligation of the Purchaser to purchase the Backstop Purchase Shares at the BPS Closing under this Agreement shall be subject to the
fulfillment, at or prior to the BPS Closing of each of the following conditions, any of which, to the extent permitted by Applicable Laws, may be waived by the Purchaser: 

(i) The Transactions shall be consummated substantially concurrently with, and immediately following, the purchase of the
Backstop Purchase Shares; 
 (ii) All conditions precedent to Closing set forth in the Business Combination Agreement shall
have been satisfied or waived (other than those conditions which, by their nature, are to be satisfied upon Closing); and 

(iii) No provision of Applicable Law, and no judgment, injunction, order or decree of any applicable Governmental Authority,
shall prohibit the consummation of the transactions contemplated hereby. 

  
 8 













 (b) The obligation of the Company to sell the Backstop Purchase Shares at the BPS Closing
under this Agreement shall be subject to the fulfillment, at or prior to the BPS Closing of each of the following conditions, any of which, to the extent permitted by applicable laws, may be waived by the Company: 

(i) The Transactions shall be consummated substantially concurrently with, and immediately following, the purchase of the
Backstop Purchase Shares; 
 (ii) The representations and warranties of the Purchaser set forth in Section 3 of this
Agreement shall have been true and correct as of the date hereof and shall be true and correct as of the BPS Closing, as applicable, with the same effect as though such representations and warranties had been made on and as of such date (other than
any such representation or warranty that is made by its terms as of a specified date, which shall be true and correct as of such specified date), except where the failure to be so true and correct would not have a material adverse effect on the
Purchaser or its ability to consummate the transactions contemplated by this Agreement; 
 (iii) The Purchaser shall have
performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by this Agreement to be performed, satisfied or complied with by the Purchaser at or prior to the BPS Closing; and 

(iv) No provision of Applicable Law, and no judgment, injunction, order or decree of any applicable Governmental Authority,
shall prohibit the consummation of the transactions contemplated hereby. 
 7. Termination. This Agreement may be terminated at
any time prior to the BPS Closing: 
 (a) by written consent of each of the Company, the Purchaser, Mirion and the Charterhouse Parties; or

 (b) automatically: 

(i) upon the consummation of the Transactions without the sale to the Purchaser of any Backstop Purchase Shares (whether or not
a Backstop Notice has been delivered); or 
 (ii) upon the termination of the Business Combination Agreement, as provided
under the terms therein. 
 In the event of any termination of this Agreement pursuant to this Section 7, the BPS Purchase Price, if
previously paid, and all the Purchaser’s funds paid in connection herewith shall be promptly returned to the Purchaser in accordance with written instructions provided by the Purchaser to the Company, and thereafter this Agreement shall
forthwith become null and void and have no effect, without any liability on the part of the Purchaser or the Company and their respective directors, officers, employees, partners, managers, members, or shareholders and all rights and obligations of
each party shall cease; provided, however, that nothing contained in this Section 7 shall relieve either party from liabilities or damages arising out of any fraud or willful breach by such party of any of its representations,
warranties, covenants or agreements contained in this Agreement. Section 5 shall survive termination of this Agreement. 

  
 9 













 8. General Provisions. 

(a) Notices. Any notice or communication required or permitted hereunder shall be in writing and either delivered personally, emailed or
sent by overnight mail via a reputable overnight carrier, or sent by certified or registered mail, postage prepaid, and shall be deemed to be given and received (i) when so delivered personally, (ii) when sent, with no mail undeliverable
or other rejection notice, if sent by email, or (iii) three (3) Business Days after the date of mailing to the address below or to such other address or addresses as such person may hereafter designate by notice given hereunder: 

 

	 	(i)	 If to the Purchaser, to: 



GSAM Holdings LLC 
 200 West
Street 
 New York, New York 10282 

Attention: Thomas R. Knott, David S. Plutzer 

E-mail: tom.knott@gs.com; david.plutzer@gs.com 

with a copy (which shall not constitute notice) to: 

Weil, Gotshal & Manges LLP 

767 Fifth Avenue 
 New York, NY
10153 
 Attention: Michael J. Aiello, Brian Parness 

E-mail: michael.aiello@weil.com; brian.parness@weil.com 

 

	 	(ii)	 If to the Company, to: 



GS Acquisition Holdings Corp II 

200 West Street 
 New York, New
York 10282 
 Attention: Thomas R. Knott, David S. Plutzer 

E-mail: tom.knott@gs.com; david.plutzer@gs.com 

with a copy (which shall not constitute notice), (1) if prior to Closing, to: 

Weil, Gotshal & Manges LLP 

767 Fifth Avenue 

New York, NY 10153 

Attention: Michael J. Aiello, Brian Parness 

E-mail: michael.aiello@weil.com; brian.parness@weil.com 

 

  
 10 













 or (2) if following Closing to: 

Davis Polk & Wardwell LLP 

1600 El Camino Real Ste. 100 

Menlo Park, California 94025 

Attention: Alan F. Denenberg, Stephen Salmon 

E-mail: alan.denenberg@davispolk.com; stephen.salmon@davispolk.com 

with a copy (which copy shall not constitute notice) to: 

Freshfields Bruckhaus Deringer LLP 

601 Lexington Avenue, 31st Floor 

New York, New York 10019 

Attention: Valerie Ford Jacob 
 E-mail: valerie.jacob@freshfields.com 
 Freshfields Bruckhaus Deringer LLP 

9 avenue de Messine 
 75008
Paris, France 
 Attention: Yann Gozal 

E-mail: yann.gozal@freshfields.com 

(b) Entire Agreement. This Agreement constitutes the entire agreement, and supersedes all other prior agreements, understandings,
representations and warranties, both written and oral, among the parties, with respect to the subject matter hereof, including any commitment letter entered into relating to the subject matter hereof. 

(c) No Third Party Beneficiaries; Exception. Except to the extent expressly set forth in Sections 7(a), 8(e), 8(j) and 8(q), this
Agreement shall be binding on, and inure solely to the benefit of, the parties hereto and their respective successors and assigns, and nothing set forth in this Agreement shall be construed to confer upon or give any Person, other than the parties
hereto and their respective successors and permitted assigns, any benefits, rights or remedies under or by reason of, or any rights to enforce or cause the Company to enforce, this Agreement; provided, however, that Mirion and the
Charterhouse Parties are intended third party beneficiaries of Sections 2, 3, 7(a), 8(e), 8(j) and 8(q) of this Agreement to the extent expressly set forth therein. 

(d) Successors. All of the terms, agreements, covenants, representations, warranties, and conditions of this Agreement are binding upon,
and inure to the benefit of and are enforceable by, the parties hereto and their respective successors. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors
and assigns any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement. 

  
 11 













 (e) Assignments. Except as otherwise specifically provided herein, no party hereto
may assign either this Agreement or any of its rights, interests, or obligations hereunder without the prior written consent of the other party, Mirion and the Charterhouse Parties. Notwithstanding the foregoing, the Purchaser may assign and
delegate all or a portion of its rights and obligations to purchase the Backstop Purchase Shares to one or more other persons upon the consent of the Company, Mirion and the Charterhouse Parties (which consent shall not be unreasonably conditioned,
withheld or delayed); provided, however, that no consent of the Company, Mirion or the Charterhouse Parties shall be required if such assignment or delegation is to an Affiliate, employee, partner or client of Purchaser or its
Affiliates; provided, further, that no such assignment or delegation shall relieve the Purchaser of its obligations hereunder (including its obligation to purchase the Backstop Purchase Shares) and the Company shall be entitled to
pursue all rights and remedies against the Purchaser in respect its obligations subject to the terms and conditions hereof. Any purported assignment or assumption of this Agreement or any right or obligation hereunder in contravention of this
Section 8(e) shall be void ab initio. 
 (f) Counterparts. This Agreement may be executed in one or more counterparts, all
of which when taken together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other parties, it being understood that the parties need not sign the same
counterpart. 
 (g) Headings and Captions. The headings and captions of the various subdivisions of this Agreement are for convenience
of reference only and shall in no way modify or affect the meaning or construction of any of the terms or provisions hereof. 
 (h)
Governing Law. This Agreement, and any claim or cause of action hereunder based upon, arising out of or related to this Agreement (whether based on law, in equity, in contract, in tort or any other theory) or the negotiation, execution,
performance or enforcement of this Agreement, shall be governed by and construed in accordance with the laws of the State of Delaware, without giving effect to the principles of conflicts of law thereof. 

(i) Consent to Jurisdiction; Waiver of Jury Trial. Each of the parties irrevocably consents to the exclusive jurisdiction and venue of
the Court of Chancery of the State of Delaware, provided that if subject matter jurisdiction over the matter that is the subject of the legal proceeding is vested exclusively in the U.S. federal courts, such legal proceeding shall be heard in the
U.S. District Court for the District of Delaware (together with the Court of Chancery of the State of Delaware, “Chosen Courts”), in connection with any matter based upon or arising out of this Agreement. Each party hereby waives,
and shall not assert as a defense in any legal dispute, that (i) such person is not personally subject to the jurisdiction of the Chosen Courts for any reason, (ii) such legal proceeding may not be brought or is not maintainable in the
Chosen Courts, (iii) such person’s property is exempt or immune from execution, (iv) such legal proceeding is brought in an inconvenient forum or (v) the venue of such legal proceeding is improper. Each party hereby consents to
service of process in any such proceeding in any manner permitted by Delaware law, further consents to service of process by nationally recognized overnight courier service guaranteeing overnight delivery, or by registered or certified mail, return
receipt requested, at its address specified pursuant to Section 8(a) and waives and covenants not to assert or plead any objection which they might otherwise have to such manner of service of process. Notwithstanding the foregoing in this
Section 8(i), a party may commence any action, 

  
 12 













 
claim, cause of action or suit in a court other than the Chosen Courts solely for the purpose of enforcing an order or judgment issued by the Chosen Courts. TO THE EXTENT NOT PROHIBITED BY
APPLICABLE LAW WHICH CANNOT BE WAIVED, EACH OF THE PARTIES WAIVES ANY RIGHT TO TRIAL BY JURY ON ANY CLAIMS OR COUNTERCLAIMS ASSERTED IN ANY LEGAL DISPUTE RELATING TO THIS AGREEMENT WHETHER NOW EXISTING OR HEREAFTER ARISING. IF THE SUBJECT MATTER OF
ANY SUCH LEGAL DISPUTE IS ONE IN WHICH THE WAIVER OF JURY TRIAL IS PROHIBITED, NO PARTY SHALL ASSERT IN SUCH LEGAL DISPUTE A NONCOMPULSORY COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT. FURTHERMORE, NO PARTY SHALL SEEK TO CONSOLIDATE ANY
SUCH LEGAL DISPUTE WITH A SEPARATE ACTION OR OTHER LEGAL PROCEEDING IN WHICH A JURY TRIAL CANNOT BE WAIVED. 
 (j) Modifications and
Amendments. This Agreement may not be amended, modified, supplemented or waived except by an instrument in writing, signed by the party against whom enforcement of such amendment, modification, supplement or waiver is sought; provided,
that the prior written consent of Mirion and the Charterhouse Parties shall be required for any material amendments, modifications, waivers or supplements (which shall include amendments which (1) create additional conditionality to the
Purchaser’s obligation to purchase the Backstop Purchase Shares, (2) change the Backstop Limit, (3) change Mirion’s and the Charterhouse Parties’ rights under this Agreement, or (4) change the economics or delay the
timing of any Backstop Notice (including changing the threshold of GS Stockholder Redemptions before which a Backstop Notice can be given under Section 1(b)). 

(k) Waiver of Damages. Notwithstanding anything to the contrary contained herein, in no event shall any party be liable for punitive
damages in connection with this Agreement; provided, however, that in no event shall the Purchaser be liable for any form of damages, whether such damages are consequential, special or exemplary, in connection with this Agreement in
excess of the sum of the Backstop Limit and any reasonable fees and expenses (including, without limitation, legal fees) associated with the collection of such damages. 

(l) Severability. If any provision of this Agreement shall be invalid, illegal or unenforceable, the validity, legality or
enforceability of the remaining provisions of this Agreement shall not in any way be affected or impaired thereby and shall continue in full force and effect. 

(m) Expenses. The parties will each be responsible for their costs and expenses incurred in connection with the preparation, execution
and performance of this Agreement and the consummation of the transactions contemplated hereby, including all fees and expenses of agents, representatives, financial advisors, legal counsel and accountants. The Company will be responsible for all
fees and expenses incurred in connection with transfer agents, stamp taxes and all of The Depository Trust Company’s fees associated with the issuance and resale of the Securities and any securities issuable upon conversion or exercise of the
Securities (in each case, if applicable). 

  
 13 













 (n) Construction. The parties hereto have participated jointly in the negotiation and
drafting of this Agreement. If an ambiguity or question of intent or interpretation arises, this Agreement will be construed as if drafted jointly by the parties hereto and no presumption or burden of proof will arise favoring or disfavoring any
party hereto because of the authorship of any provision of this Agreement. Any reference to any federal, state, local, or foreign law will be deemed also to refer to law as amended and all rules and regulations promulgated thereunder, unless the
context requires otherwise. The words “include,” “includes,” and “including” will be deemed to be followed by “without limitation.” Pronouns in masculine, feminine, and neuter
genders will be construed to include any other gender, and words in the singular form will be construed to include the plural and vice versa, unless the context otherwise requires. The words “this Agreement,”
“herein,” “hereof,” “hereby,” “hereunder,” and words of similar import refer to this Agreement as a whole and not to any particular subdivision unless expressly so limited. The
parties hereto intend that each representation, warranty, and covenant contained herein will have independent significance. If any party hereto has breached any representation, warranty, or covenant contained herein in any respect, the fact that
there exists another representation, warranty or covenant relating to the same subject matter (regardless of the relative levels of specificity) which such party hereto has not breached will not detract from or mitigate the fact that such party
hereto is in breach of the first representation, warranty, or covenant. 
 (o) Waiver. No waiver by any party hereto of any default,
misrepresentation, or breach of warranty or covenant hereunder, whether intentional or not, may be deemed to extend to any prior or subsequent default, misrepresentation, or breach of warranty or covenant hereunder or affect in any way any rights
arising because of any prior or subsequent occurrence. 
 (p) Confidentiality. Except as may be required by law, regulation or
applicable stock exchange listing requirements, or upon the request of a Governmental Authority, unless and until the transactions contemplated hereby and the terms hereof are publicly announced or otherwise publicly disclosed by the Company, the
parties hereto shall keep confidential and shall not publicly disclose the existence or terms of this Agreement. 
 (q) Specific
Performance; Enforcement. The Purchaser agrees that irreparable damage may occur to the Company, Mirion and the Charterhouse Parties in the event any provision of this Agreement is not performed by the Purchaser in accordance with the terms
hereof and that the Company, Mirion and the Charterhouse Parties shall be entitled to specific performance of the terms hereof, in addition to any other remedy at law or equity, without a requirement to post bond or any other security. Subject to
the proviso in Section 8(c) and as provided in this Section 8(q), this Agreement may be enforced only by the Company and the Purchaser, and none of the Company’s direct or indirect creditors nor any other person that is not a party to
this Agreement shall have any right to enforce this Agreement or to cause the Company to enforce this Agreement. 
 (r) Further
Assurances. Each party will, at the request of the other party, promptly take all actions, and execute and deliver all other agreements and documents, which may be reasonably required to give effect to the terms of and the transactions
contemplated by this Agreement. 
 [Signature Page Follows] 

  
 14 













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

			
	GS ACQUISITION HOLDINGS CORP II
		
	By:	 	 /s/ Thomas R. Knott

		 	Name: Thomas R. Knott
		 	Title: Authorized Signatory
	
	GSAM HOLDINGS LLC
		
	By:	 	 /s/ Thomas R. Knott

		 	Name: Thomas R. Knott
		 	Title: Authorized Signatory