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This Pubco Support Agreement dated as of May 9, 2023 (as it may be amended from time to time, this “Agreement”) is among Amprius Technologies, Inc., a Delaware corporation (“Pubco”), and certain of the stockholders of Pubco whose names appear on the signature pages of this Agreement, including Amprius, Inc., a Delaware corporation (“Holdco”) (each, a “Stockholder” and collectively, the “Stockholders”). Capitalized terms used but not defined in this Agreement have the meanings assigned to them in the Agreement and Plan of Merger and Reorganization, dated as of the date of this Agreement (the “Merger Agreement”), among Pubco, Combine Merger Sub, Inc., a Delaware corporation and a wholly-owned direct subsidiary of Pubco (“Merger Sub I”) and Combine Merger Sub, LLC, a Delaware limited liability company and a wholly-owned direct subsidiary of Pubco (“Merger Sub II” and together with Merger Sub I, the “Merger Subs”), and Holdco.

WHEREAS, Pubco, Merger Subs and Holdco are entering into, concurrently herewith, the Merger Agreement, which provides, among other things, that, upon the terms and subject to the conditions thereof, Pubco and Holdco will enter into a transaction pursuant to which Merger Sub I will merge with and into Holdco (the “First Merger”), with Holdco surviving the First Merger as a wholly-owned subsidiary of Pubco, and promptly following the First Merger, and as part of the same overall transaction, Holdco (i.e., the surviving entity of the First Merger) will merge with and into Merger Sub II (the “Second Merger”, and together with the First Merger, the “Mergers”);

1.Agreement to Vote. Unless the Expiration Time (as defined below) has occurred, each Stockholder, by this Agreement, with respect to its Shares, severally and not jointly, hereby agrees, (a) to vote, at any meeting of the stockholders of Pubco called for the purpose of approving the Transactions, all Shares held by such Stockholder at such time in favor of the approval and adoption of the Merger Agreement, the Pubco Effective Time Certificate, the Mergers and the other Transactions, and (b) to vote all Shares held by such Stockholder at such time against approval of any proposal, transaction, agreement or action, without regard to the terms of such proposal, transaction, agreement or action, made in opposition to, in competition with or inconsistent with, the Merger Agreement, the Pubco Effective Time Certificate, the Mergers or the other Transactions. Each Stockholder shall cause all of its Shares to be counted as present thereat (including by proxy) for purposes of establishing a quorum at each meeting of Pubco’s stockholders at which the matters described in this Section 1 are to be considered (including every adjournment or postponement thereof). Each Stockholder acknowledges receipt and review of a copy of the Merger Agreement and the Pubco Effective Time Certificate. In order to secure the obligations set forth herein, Holdco hereby irrevocably appoints Pubco, or any nominee thereof, with full power of substitution and resubstitution, as its true and lawful proxy and attorney-in-fact, in the event that Holdco does not comply with its obligations in this Section 1, to vote or execute written consents with respect to its Shares in accordance this Section 1 and with respect to any proposed postponements or adjournments of any meeting of the stockholders of Pubco at which any of the matters described this Section 1 are to be considered. Holdco hereby affirms that this proxy is coupled with an interest and shall be irrevocable, except upon termination of this Agreement, and that Holdco will take such further action or execute such other instruments as may be necessary to effectuate the intent of this proxy and hereby revokes any proxy previously granted by Holdco with respect to any of its Shares.

(a)Unless the Expiration Time has occurred before the First Effective Time, Holdco, by this Agreement, with respect to its Shares, severally and not jointly, hereby agrees to terminate, subject to and effective immediately prior to the First Effective Time, any rights under any agreement providing for redemption rights, put rights, purchase rights or other similar rights not generally available to stockholders of Pubco (the “Terminating Rights”) between Holdco and Pubco. For the avoidance of doubt, any agreements or other rights a Stockholder may have that relate to any commercial or employment agreements or arrangements between such Stockholder and Pubco or any subsidiary are expressly excluded from the foregoing termination and shall continue in full force and effect in accordance with their terms.

3.Transfer of Shares. Each Stockholder severally and not jointly, agrees that, from the date of this Agreement until the Expiration Time, it shall not, directly or indirectly, without the prior written consent of Pubco, (a) sell, assign, transfer (including by operation of law), lien, pledge, dispose of or otherwise encumber any of the Shares or otherwise agree to do any of the foregoing, except for a sale, assignment or transfer pursuant to the Merger Agreement or to another stockholder of Pubco that is or becomes a party to this Agreement and bound by the terms and obligations hereof, (b) deposit any Shares into a voting trust or enter into a voting agreement or arrangement or grant any proxy or power of attorney with respect thereto that is inconsistent with this Agreement or (c) enter into any contract, option or other arrangement or undertaking with respect to the direct or indirect acquisition or sale, assignment, transfer (including by operation of law) or other disposition of any Shares; provided, however, that the foregoing shall not prohibit the transfer of any Shares (i) to an affiliate of Stockholder, (ii) if Stockholder is a natural person, to a member of Stockholder’s immediate family, (iii) to any charitable organization described in Section 170(c) of the Code, (iv) to any trust, the beneficiaries of which include only the persons named in the preceding clauses (ii) or (iii), (v) to any corporation, limited liability company or partnership, the stockholders, members or partners of which include only the persons described in clauses (i) through (iv) above or (vi) by will or under the laws of intestacy upon the death of Stockholder; provided, however, that in each of cases (i) through (v), as a condition to the effectiveness of the transfer, the transferee shall execute a counterpart to this Agreement or a joinder agreeing to become a party to this Agreement, in each case, in form and substance reasonably acceptable to Pubco. Any transfer in violation of this Section 3 shall be void ab initio.

4.No Solicitation of Transactions. From the date of this Agreement until the Expiration Time, each of the Stockholders severally and not jointly, agrees that such Stockholder shall not, and shall cause its Representatives not to initiate, solicit, facilitate or encourage (including by way of furnishing non-public information), whether publicly or otherwise, any inquiries with respect to, or the making of, or engage in any discussions or negotiations with respect to, any transaction that would reasonably be expected to be a breach of the Merger Agreement or interfere with the consummation of the transactions contemplated thereby.

(a)The execution and delivery by such Stockholder of this Agreement does not, and the performance of this Agreement by such Stockholder will not, (i) if such Stockholder is not a natural person, conflict with or violate the governing documents of such Stockholder, (ii) conflict with or violate any Law applicable to such Stockholder or by which any of its Shares are bound, (iii) result in any breach of, or constitute a default (or an event which, with notice or lapse of time or both, would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of a Lien (other than a Permitted Lien) on any property or asset of such Stockholder pursuant to, any note, bond, mortgage, indenture, contract, agreement, lease, license, permit, franchise or other instrument or obligation to which such Stockholder is a party or by which such Stockholder or any of its Shares are bound or (iv) require any consent, approval, authorization or permit of, or filing with or notification to, any Governmental Authority, except, with respect to clauses (ii), (iii) and (iv), for any

(c)Such Stockholder has all necessary power and authority (or, in the case of any Stockholder that is a natural person, capacity) to execute and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery by such Stockholder of this Agreement, the performance by such Stockholder of its obligations hereunder and the consummation by such Stockholder of the transactions contemplated hereby, have been duly and validly authorized by all necessary corporate, limited liability company, limited partnership, or other entity action, and no other corporate, limited liability company, limited partnership, or other entity actions on the part of such Stockholder is necessary to authorize this Agreement or to consummate the transactions contemplated hereby. This Agreement has been duly and validly executed and delivered by such Stockholder and, assuming due authorization, execution and delivery by the other parties hereto, constitutes a legal, valid and binding obligation of such Stockholder, enforceable against such Stockholder in accordance with its terms subject to the Remedies Exceptions.

(a)The execution and delivery by Pubco of this Agreement does not, and the performance of this Agreement by Pubco will not, subject to receiving the Pubco Requisite Stockholder Approval and approval by Pubco as the sole stockholder of Merger Sub I and as the sole member of Merger Sub II, (i) conflict with or violate the Pubco Organizational Documents or the Merger Sub Organizational Documents, (ii) assuming that all consents, approvals, authorizations and other actions described in the Merger Agreement have been obtained and all filings and obligations described in the Merger Agreement have been made, conflict with or violate any Law, rule, regulation, order, judgment or decree applicable to each of Pubco, Merger Sub I or Merger Sub II or by which any of their property or assets is bound or affected, or (iii) result in any breach of, or constitute a default (or an event which, with notice or lapse of time or both, would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of a Lien on any property or asset of each of Pubco, Merger Sub I or Merger Sub II pursuant to, any note, bond, mortgage, indenture, contract, agreement, lease, license, permit, franchise or other instrument or obligation to which each of Pubco, Merger Sub I or Merger Sub II is a party or by which each of Pubco, Merger Sub I or Merger Sub II or any of their property or assets is bound or affected, except, with respect to clauses (ii) and (iii), for any such conflicts, violations, breaches, defaults or other occurrences that would not have a Pubco Material Adverse Effect.

(b)Pubco has all the necessary power and authority to execute and deliver this Agreement, to perform its obligations hereunder and, subject to receiving the Pubco Requisite Stockholder Approval and approval by Pubco as the sole stockholder of Merger Sub I and as the sole member of Merger Sub II, to consummate the transactions contemplated hereby. The execution and delivery by Pubco of this Agreement, the performance by Pubco of its obligations hereunder and the consummation of Pubco of the Transactions, have been duly and validly authorized by all necessary corporate action, and no other corporate actions on the part of Pubco are necessary to authorize this Agreement or to consummate the transactions contemplated hereby (other than (i) with respect to the Mergers, the Pubco Requisite Stockholder Approval and the approval by Pubco as the sole stockholder of Merger Sub Common Stock and as the sole member of Merger Sub II, and the filing and recordation of appropriate merger documents as required by the DGCL and/or the DLLCA, and (ii) with respect to the issuance of Pubco Shares and Pubco Non-Voting Shares, and the Pubco Requisite Stockholder Approval and the filing and effectiveness of the Pubco Effective Time Certificate). This Agreement has been duly and validly executed and delivered by Pubco, and, assuming due authorization, execution and delivery by

7.Termination. Other than Section 2(b), this Section 7 and Section 8, which shall survive any termination of this Agreement, this Agreement and the obligations of the parties hereunder shall automatically terminate upon the earliest to occur of (a) the First Effective Time; (b) the termination of the Merger Agreement in accordance with its terms; and (c) the effective date of a written agreement of the parties hereto terminating this Agreement (the time of termination pursuant to this Section 7, whether pursuant to subsection (a), (b), or (c), herein referred to as the “Expiration Time”). Upon termination of this Agreement, the parties shall not have any further obligations or liabilities under this Agreement; provided, however, that nothing in this Section 7 shall relieve any party of liability for any breach of this Agreement occurring prior to termination or for any breach of Section 2(b).

(a)Notices. All notices, requests, claims, demands and other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt) by delivery in person, by e-mail or by registered or certified mail (postage prepaid, return receipt requested) to the respective parties at the following addresses or e-mail addresses (or at such other address or email address for a party as shall be specified in a notice given in accordance with this Section 8(a)):

(b)Severability. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in a mutually acceptable manner in order that the transactions contemplated hereby be consummated as originally contemplated to the fullest extent possible.

(c)Entire Agreement; Assignment. This Agreement, the Merger Agreement and the Ancillary Agreements constitute the entire agreement among the parties with respect to the subject matter hereof and supersede, except as set forth in Section 7.04(b) of the Merger Agreement, all prior agreements and undertakings, both written and oral, among the parties, or any of them, with respect to the subject matter hereof, except for the Confidentiality Agreement. This Agreement shall not be assigned (whether pursuant to a merger, by operation of law or otherwise) by any party without the prior express written consent of the other parties hereto.

(h)Specific Performance. The parties agree that irreparable damage would occur if any provision of this Agreement were not performed in accordance with the terms hereof, and, accordingly, that the parties shall be entitled to an injunction or injunctions to prevent breaches of this Agreement or to enforce specifically the performance of the terms and provisions hereof without proof of actual damages or otherwise, in addition to any other remedy to which they are entitled at law or in equity as expressly permitted in this Agreement. Each of the parties hereby further waives (i) any defense in any action for specific performance that a remedy at law would be adequate and (ii) any requirement under any Law to post security or a bond as a prerequisite to obtaining equitable relief.

(j)Amendment. This Agreement may be amended in writing by the parties hereto at any time prior to the First Effective Time. This Agreement may not be amended except by an instrument in writing signed by each of the parties hereto. For all purposes hereunder, Pubco, shall act, including with respect to the granting or approval of any amendment, termination, consent, permission or waiver, or the making of any determination, only as directed by the Pubco Special Committee or its designees, or if the Pubco Special Committee is not then in existence, as directed by a majority of the independent, disinterested members of the Board of Directors of Pubco.

(k)Waiver. Any party to this Agreement may, at any time prior to the First Effective Time, (i) extend the time for the performance of any obligation or other act of the other parties hereto, (ii) waive any inaccuracy in the representations and warranties of another party hereto contained herein or in any document delivered by another party pursuant hereto and (iii) waive compliance with any agreement of another party hereto or any condition to its own obligations contained herein. Any such extension or waiver shall be valid if set forth in an instrument in writing signed by the party or parties to be bound thereby.

(l)Interpretation. The parties have participated jointly in the negotiation and drafting of this Agreement. If any ambiguity or question of intent arises, this Agreement will be construed as if drafted jointly by the parties and no presumption or burden of proof will arise favoring or disfavoring any party because of the authorship of any provision of this Agreement. Unless the context of this Agreement clearly requires otherwise, use of the masculine gender shall include the feminine and neutral genders and vice versa, and the definitions of terms contained in this Agreement are applicable to the singular as well as the plural forms of such terms. The words “includes” or “including” shall mean “including without limitation.” The words “hereof,” “hereby,” “herein,” “hereunder” and similar terms in this Agreement shall refer to this Agreement as a whole and not any particular section or article in which such words appear, the word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends and such phrase shall not mean simply “if.” Any reference to a Law shall include any rules and regulations promulgated thereunder, and shall mean such Law as from time to time amended, modified or supplemented. References herein to any contract (including this Agreement) mean such contract as amended, supplemented or modified from time to time in accordance with the terms thereof.

(m)No Joint Venture. Nothing contained in this Agreement shall be deemed or construed as creating a joint venture or partnership between any of the parties hereto. No party is by virtue of this Agreement authorized as an agent, employee or legal representative of any other party. Without in any way limiting the rights or obligations of any party hereto under this Agreement, prior to the First Effective Time, (i) no party shall have the power by virtue of this Agreement to control the activities and operations of any other and (ii) no party shall have any power or authority by virtue of this Agreement to bind or commit any other party. No party shall hold itself out as having any authority or relationship in contravention of this Section 9(m).

(o)Capacity as Stockholder. Each Stockholder signs this Agreement solely in its capacity as a stockholder of Pubco, and not in its capacity as a director (including “director by deputization”), officer or employee of Pubco, if applicable. Nothing herein shall be construed to limit or affect any actions or inactions by any Stockholder or any of their respective representatives, as applicable, serving as a director of Pubco or any subsidiary of Pubco, acting in such person’s capacity as a director or officer of Pubco or any subsidiary of Pubco (it being understood and agreed that the Merger Agreement contains provisions that govern the actions or inactions by the directors of Holdco with respect to the Mergers and Transactions).


			AMPRIUS, INC.

			By:			/s/ William Deihl
			Name:			William Deihl

			Title:			Chief Financial Officer

			Address:


			Email: