REGISTRATION RIGHTS AGREEMENT

Execution Version

This Registration Rights Agreement (this “Agreement”) is made and entered into as of September 21, 2023 (the “Effective Date”) by and between ESS Tech, Inc., a Delaware corporation (the “Company”), and Honeywell ACS Ventures LLC (“ACS”). The terms used herein, but not defined herein shall have the meanings set forth therein in the Purchase Agreement (as defined below).

RECITALS

WHEREAS, the Company and ACS entered into a Common Stock and Warrant Purchase Agreement of even date herewith (the “Purchase Agreement”).

WHEREAS, ACS has purchased from and the Company has issued to ACS shares of the Company’s Class common stock, par value $0.0001 per share (the “Common Stock”);

WHEREAS, ACS has purchased from and the Company has issued to ACS Warrants to purchase shares of Common Stock.

NOW, THEREFORE, in consideration of the mutual covenants and agreements contained herein, the parties agree as follows:

ARTICLE I

DEFINITIONS

Section 1.1 Definitions. For purposes of this Agreement, the following terms and variations thereof have the meanings set forth below:

“Agreement” shall have the meaning given in the Preamble.

“Board” shall mean the Board of Directors of the Company.

“Business Day” means any day other than a Sunday or a day on which the Federal Reserve Bank of New York is closed.

“Commission” shall mean the Securities and Exchange Commission.

“Common Stock” shall have the meaning given in the Recitals hereto.

“Company” shall have the meaning given in the Preamble.

“Effectiveness Deadline” shall have the meaning given in subsection 2.1.1.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as it may be amended from time to time.

“Form S-1” shall mean a Registration Statement on Form S-1.

“Form S-3” shall have the meaning given in subsection 2.1.1.

“Holder” or “Holders” shall mean ACS and/or its transferees and assignees which execute a joinder to this Agreement in the form attached as Exhibit A.

“Misstatement” shall mean, in the case of a Registration Statement, an untrue statement of a material fact or an omission to state a material fact required to be stated therein, or, in the case of a Prospectus, an untrue statement of material fact or an omission to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

“New Registration Statement” shall have the meaning given in subsection 2.1.4.

“Piggyback Registration” shall have the meaning given in subsection 2.3.1.

“Prospectus” shall mean the prospectus included in any Registration Statement, as supplemented by any and all prospectus supplements and as amended by any and all post-effective amendments and including all material incorporated by reference in such prospectus.

“Registrable Security” shall mean (a) any shares of Common Stock or warrants issued to Holder or UOP pursuant to the Purchase Agreement or the Supply Agreement, (b) any shares of Common Stock issued to the Holder or UOP upon exercise of any warrants issued to the Holder or UOP pursuant to the Purchase Agreement or the Supply Agreement, and (c) any other equity security of the Company issued or issuable with respect to any such shares of Common Stock held by Holder or UOP by way of a stock dividend or stock split or in connection with a combination of shares, recapitalization, merger, consolidation or reorganization,; provided, however, that, as to any particular Registrable Security, such security shall cease to be a Registrable Security at such time when: (A) a Registration Statement with respect to the offer or sale of such securities shall have become effective under the Securities Act; (B) such security shall have been otherwise transferred by a Holder, a new certificate or book-entry for such security not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of such security shall not require registration under the Securities Act; (C) such security shall have ceased to be outstanding; (D) such security has been sold to, or through, a broker, dealer or underwriter in a public distribution or other public securities transaction; or (E) such security may be sold without registration pursuant to Rule 144 promulgated under the Securities Act (or any successor rule promulgated hereafter by the Commission) (but with no volume or other restrictions, limitations or conditions) and the Company has caused its counsel to deliver an opinion to such effect to the Holder and the Company’s transfer agent for the Common Stock.

“Registration” shall mean a registration effected by preparing and filing a registration statement or similar document in compliance with the requirements of the Securities Act, and the applicable rules and regulations promulgated thereunder, and such registration statement becoming effective.

“Registration Expenses” shall mean the documented out-of-pocket expenses of a Registration, including, without limitation, the following:

(A) all registration and filing fees (including fees with respect to filings required to be made with the Financial Industry Regulatory Authority, Inc.) and any national securities exchange or trading market on which the Common Stock is then listed;

(B) fees and expenses of compliance with securities or blue sky laws (including reasonable fees and disbursements of counsel for the Underwriters in connection with blue sky qualifications of Registrable Securities);

(D) reasonable fees and disbursements of counsel for the Company, including the cost of rendering any opinion or negative assurance letter;

(E) reasonable fees and disbursements of all independent registered public accountants of the Company incurred specifically in connection with such Registration, including the cost of rendering any comfort letter; and

(F) reasonable fees and expenses of one (1) legal counsel for all holders of registrable securities to be registered for offer and sale in the applicable Registration, selected by holders of the majority-in-interest of the Registrable Securities in a Resale Registration Statement.

Notwithstanding the foregoing, under no circumstances shall the Company be obligated to pay any fees, discounts and/or commissions to any Underwriter or broker with respect to the Registrable Securities.

“Registration Statement” shall mean any registration statement (including a registration statement filed pursuant to Rule 462(b) of the Securities Act) that covers the Registrable Securities pursuant to the provisions of this Agreement, including the Prospectus included in such registration statement, amendments (including post-effective amendments) and supplements to such registration statement, and all exhibits to and all material incorporated by reference in such registration statement.

“Resale Shelf Registration Statement” shall have the meaning given in subsection 2.1.1.

“Securities Act” shall mean the Securities Act of 1933, as amended from time to time.

“Supply Agreement” shall mean that certain Master Supply Agreement entered into by and between the Company and UOP LLC of even date hereof.

“Suspension Event” shall have the meaning given in Section 3.4.

“Underwriter” shall mean a securities dealer who purchases any Registrable Securities as principal in an Underwritten Offering and not as part of such dealer’s market-making activities.

“Underwritten Registration” or “Underwritten Offering” shall mean a Registration in which securities of the Company are sold to an Underwriter in a firm commitment underwriting for distribution to the public.

“UOP” shall mean UOP LLC.

ARTICLE II

REGISTRATION

Section 2.1 Resale Shelf Registration Rights

2.1.1 Registration Statement Covering Resale of Registrable Securities. The Company shall prepare and file or cause to be prepared and filed with the Commission, no later than the earlier of (i) such date on which the Company files its Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023 and (ii) sixty (60) calendar days following the Closing of the Purchase Agreement, a Registration Statement for an offering to be made on a delayed or continuous basis pursuant to Rule 415 of the Securities Act or any successor thereto registering the resale from time to time by Xxxxxx of all of the Registrable Securities held by Holder then outstanding (the “Resale Shelf Registration Statement”). The Resale Shelf Registration Statement shall be on Form S-3 (or, if Form S-3 is not available to be used by the Company at such time, on Form S-1 or another appropriate form permitting Registration of such Registrable Securities for resale by Holder (“Form S-3”)). The Company shall use commercially reasonable efforts to cause the Resale Shelf Registration Statement to be declared effective as soon as practicable after filing, but no later than the earlier of (i) the 10th calendar day (or 30th calendar day if the Commission notifies the Company that it will “review” the Registration Statement) following the filing of the Resale Shelf Registration Statement and (ii) the fifth (5th) Business Day after the date the Company is notified (orally or in writing, whichever is earlier) by the Commission that the Resale Shelf Registration Statement will not be “reviewed” or will not be subject to further review (such earlier date, the “Effectiveness Deadline”). Once effective, the Company shall use commercially reasonable efforts to keep the Resale Shelf Registration Statement continuously effective and to be supplemented and amended to the extent necessary to ensure that such Registration Statement is available or, if not available, to ensure that another Registration Statement is available, under the Securities Act at all times until all Registrable Securities and other securities covered by such Registration Statement have been disposed of in accordance with the intended method(s) of distribution set forth in such Registration Statement or have ceased to be Registrable Securities. The Registration Statement filed with the Commission pursuant to this subsection 2.1.1 shall contain a prospectus in such form as to permit the Holder to sell such Registrable Securities pursuant to Rule 415 under the Securities Act (or any successor or similar provision adopted by the Commission then in effect) at any time beginning on the effective date for such Registration Statement, and shall provide that such Registrable Securities may be sold pursuant to any method or combination of methods legally available to, and requested by, the Holder.

2.1.2 Notification and Distribution of Materials. The Company shall notify the Holder in writing of the effectiveness of the Resale Shelf Registration Statement as soon as practicable, and in any event within one (1) Business Day after the Resale Shelf Registration Statement becomes effective, and shall furnish to it, without charge, such number of copies of the Resale Shelf Registration Statement (including any amendments, supplements and exhibits), the Prospectus contained therein (including each preliminary prospectus and all related amendments and supplements) and any documents incorporated by reference in the Resale Shelf Registration Statement or such other documents as the Holders may reasonably request in order to facilitate the sale of the Registrable Securities in the manner described in the Resale Shelf Registration Statement.

2.1.3 Amendments and Supplements. Subject to the provisions of Section 2.1.1 above, the Company shall promptly prepare and file with the Commission from time to time such amendments and supplements to the Resale Shelf Registration Statement and Prospectus used in connection therewith as may be necessary to keep the Resale Shelf Registration Statement effective and to comply with the provisions of the Securities Act with respect to the disposition of all the Registrable Securities. If any Resale Shelf Registration Statement filed pursuant to Section 2.1.1 is filed on Form S-3 and thereafter the Company becomes ineligible to use Form S-3 for secondary sales, the Company shall promptly notify the Holder of such ineligibility and use its reasonable best efforts to file a shelf registration on an appropriate form as promptly as practicable to replace the shelf registration statement on Form S-3 and have such replacement Resale Shelf Registration Statement declared effective as promptly as practicable and to cause such replacement Resale Shelf Registration Statement to remain effective, and to be supplemented and amended to the extent necessary to ensure that such Resale Shelf Registration Statement is available or, if not available, that another Resale Shelf Registration Statement is available, for the resale of all the Registrable Securities held by the Holder until all such Registrable Securities have ceased to be Registrable Securities; provided, however, that at any time the Company once again becomes eligible to use Form S-3, the Company shall cause such replacement Resale Shelf Registration Statement to be amended, or shall file a new

replacement Resale Shelf Registration Statement, such that the Resale Shelf Registration Statement is once again on Form S-3.

2.1.4 Notwithstanding the registration obligations set forth in this Section 2.1, in the event the Commission informs the Company that all of the Registrable Securities cannot, as a result of the application of Rule 415, be registered for resale as a secondary offering on a single registration statement, the Company agrees to promptly (i) inform each of the holders thereof and use its reasonable best efforts to file amendments to the Resale Shelf Registration Statement as required by the Commission and/or (ii) withdraw the Resale Shelf Registration Statement and file a new registration statement (a “New Registration Statement”), on Form S-3, or if Form S-3 is not then available to the Company for such registration statement, on such other form available to register for resale the Registrable Securities as a secondary offering.

Section 2.2 [Intentionally omitted]

Section 2.3 Piggyback Registration

2.3.1 Piggyback Rights. If, at any time on or after the date hereof, the Company proposes to file a Registration Statement under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or exchangeable for, or convertible into equity securities, for its own account or for the account of stockholders of the Company (or by the Company and by the stockholders of the Company), other than a Registration Statement (i) filed in connection with any employee stock option or other benefit plan, (ii) for an exchange offer or offering of securities solely to the Company’s existing stockholders, (iii) for an offering of debt that is convertible into equity securities of the Company, (iv) for a dividend reinvestment plan, (v) on Form S-4 filed in connection with the Business Combination or (vi) filed pursuant to Section 2.1 hereof, then the Company shall give written notice of such proposed filing to all of the Holders of Registrable Securities then outstanding as soon as practicable but not less than ten (10) days before the anticipated filing date of such Registration Statement, which notice shall (A) describe the amount and type of securities to be included in such offering, the intended method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, in such offering, and (B) offer to all of the Holders of Registrable Securities the opportunity to register the sale of such number of Registrable Securities as such Holders may request in writing within five (5) days after receipt of such written notice (such Registration a “Piggyback Registration”). The Company shall, in good faith, cause such Registrable Securities to be included in such Piggyback Registration and shall use its best efforts to cause the managing Underwriter or Underwriters of a proposed Underwritten Offering to permit the Registrable Securities requested by the Holders pursuant to this Subsection 2.3.1 to be included in a Piggyback Registration on the same terms and conditions as any similar securities of the Company included in such Registration and to permit the sale or other disposition of such Registrable Securities in accordance with the intended method(s) of distribution thereof. All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this Subsection 2.3.1 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Company.

2.3.2 Reduction of Piggyback Registration. If the managing Underwriter or Underwriters in an Underwritten Registration that is to be a Piggyback Registration, in good faith, advises the Company and the Holders of Registrable Securities participating in the Piggyback Registration in writing that the dollar amount or number of shares of Common Stock that the Company desires to sell, taken together with (i) the shares of Common Stock, if any, as to which Registration has been demanded pursuant to separate written contractual arrangements with persons or entities other than the Holders of Registrable Securities hereunder, (ii) the Registrable Securities as to which registration has been requested pursuant to Section 2.3 hereof, and (iii) the shares of Common Stock, if any, as to which Registration has been requested pursuant to separate written contractual piggy-back registration rights of other stockholders of the Company, exceeds the Maximum Number of Securities, then:

(i) If the Registration is undertaken for the Company’s account, the Company shall include in any such Registration (A) first, Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their rights to register their Registrable Securities pursuant to Subsection 2.3.1 hereof, pro rata, based on the respective number of Registrable Securities that each Holder has so requested, which can be sold without exceeding the Maximum Number of Securities; and (C) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (A) and (B), Common Stock, if any, as to which Registration has been requested pursuant to written contractual piggy-back registration rights of other stockholders of the Company, which can be sold without exceeding the Maximum Number of Securities; and

(ii) If the Registration is pursuant to a request by persons or entities other than the Holders of Registrable Securities, then the Company shall include in any such Registration (A) first, Common Stock or other equity securities, if any, of such requesting persons or entities, other than the Holders of Registrable Securities, which can be sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their rights to register their Registrable Securities pursuant to subsection 2.3.1, pro rata based on the respective number of Registrable Securities that each Holder has requested be included in such Underwritten Registration and the aggregate number of Registrable Securities that the Holders have requested to be included in such Underwritten Registration, which can be sold without exceeding the Maximum Number of Securities; (C) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (A) and (B), Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; and (D) fourth, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (A), (B) and (C), Common Stock or other equity securities for the account of other persons or entities that the Company is obligated to register pursuant to separate written contractual arrangements with such persons or entities, which can be sold without exceeding the Maximum Number of Securities.

2.3.3 Piggyback Registration Withdrawal. Any Holder of Registrable Securities shall have the right to withdraw from a Piggyback Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters (if any) of his, her or its intention to withdraw from such Piggyback Registration prior to the effectiveness of the Registration Statement filed with the Commission with respect to such Piggyback Registration. The Company (whether on its own good faith determination or as the result of a request for withdrawal by persons pursuant to separate written contractual obligations) may withdraw a Registration Statement filed with the Commission in connection with a Piggyback Registration at any time prior to the effectiveness of such Registration Statement. Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred in connection with the Piggyback Registration prior to its withdrawal under this subsection 2.3.3.

2.3.4 Right to Terminate Registration. The Company shall have the right to terminate or withdraw any registration initiated by it under this Section 2.3 prior to the effectiveness of such registration whether or not any Holder of Registrable Securities has elected to include securities in such registration.”

ARTICLE III
COMPANY PROCEDURES

Section 3.1 General Procedures. If at any time on or after the date of this Agreement, the Company is required to effect the Registration of Registrable Securities, the Company shall use its reasonable best efforts to effect such Registration to permit the sale of such Registrable Securities in accordance with the intended plan of distribution thereof, and pursuant thereto the Company shall, as expeditiously as possible:

3.1.1 prepare and file with the Commission as soon as practicable a Registration Statement with respect to such Registrable Securities and use its reasonable best efforts to cause such Registration Statement to become effective and remain effective until all Registrable Securities covered by such Registration Statement have been sold or are no longer outstanding;

3.1.2 prepare and file with the Commission such amendments and post-effective amendments to the Registration Statement, and such supplements to the Prospectus, as may be reasonably requested by the Holders or any Underwriter of Registrable Securities or as may be required by the rules, regulations or instructions applicable to the registration form used by the Company or by the Securities Act or rules and regulations thereunder to keep the Registration Statement effective until all Registrable Securities covered by such Registration Statement are sold in accordance with the intended plan of distribution set forth in such Registration Statement or supplement to the Prospectus or are no longer outstanding;

3.1.3 prior to filing a Registration Statement or Prospectus, or any amendment or supplement thereto (excluding any current or periodic report filed under Section 13 or 15(d) of the Exchange Act), furnish without charge to the Underwriters, if any, and the Holders of Registrable Securities included in such Registration, and such Holder’s legal counsel, copies of such Registration Statement as proposed to be filed, each amendment and supplement to such Registration Statement (in each case including all exhibits thereto and documents incorporated by reference therein), the Prospectus included in such Registration Statement (including each preliminary Prospectus), and such other documents as the Underwriters and the Holders of Registrable

Securities included in such Registration or the legal counsel for any such Holders may request in order to facilitate the disposition of the Registrable Securities owned by such Holders;

3.1.4 prior to any public offering of Registrable Securities, use its reasonable best efforts to (i) register or qualify the Registrable Securities covered by the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States as the Holders of Registrable Securities included in such Registration Statement (in light of their intended plan of distribution) may request and (ii) take such action necessary to cause such Registrable Securities covered by the Registration Statement to be registered with or approved by such other governmental authorities as may be necessary by virtue of the business and operations of the Company and do any and all other acts and things that may be necessary or advisable to enable the Holders of Registrable Securities included in such Registration Statement to consummate the disposition of such Registrable Securities in such jurisdictions; provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify or take any action to which it would be subject to general service of process or taxation in any such jurisdiction where it is not then otherwise so subject;

3.1.5 cause all such Registrable Securities to be listed on each securities exchange or automated quotation system on which similar securities issued by the Company are then listed;

3.1.6 provide a transfer agent or warrant agent, as applicable, and registrar for all such Registrable Securities no later than the effective date of such Registration Statement;

3.1.7 advise each seller of such Registrable Securities, promptly after it shall receive notice or obtain knowledge thereof, of the issuance of any stop order by the Commission suspending the effectiveness of such Registration Statement or the initiation or threatening of any proceeding for such purpose and promptly use its reasonable best efforts to prevent the issuance of any stop order or to obtain its withdrawal if such stop order should be issued;

3.1.8 advise each Holder of Registrable Securities covered by such Registration Statement, promptly after the Company receives notice thereof, of the time when such registration statement has been declared effective or a supplement to any Prospectus (excluding any current or periodic report filed under Section 13 or 15(d) of the Exchange Act) forming a part of such registration statement has been filed;

3.1.9 at least five (5) days prior to the filing of any Registration Statement or Prospectus or any amendment or supplement to such Registration Statement or Prospectus (excluding any current or periodic report filed under Section 13 or 15(d) of the Exchange Act), furnish a copy thereof to each seller of such Registrable Securities or its counsel;

3.1.10 notify the Holders at any time when a Prospectus relating to such Registration Statement is required to be delivered under the Securities Act, of the happening of any event as a result of which the Prospectus included in such Registration Statement, as then in effect, includes a Misstatement, and then to correct such Misstatement as set forth in Section 3.4 hereof;

3.1.11 permit a representative of the Holders, the Underwriters, if any, and any attorney or accountant retained by such Holders or Underwriter to participate, at each such person’s own expense, in the preparation of the Registration Statement, and cause the Company’s officers, directors and employees to supply all information reasonably requested by any such representative, Underwriter, attorney or accountant in connection with the Registration; provided, however, that such representatives or Underwriters enter into a confidentiality agreement, in form and substance reasonably satisfactory to the Company, prior to the release or disclosure of any such information;

3.1.12 obtain a “cold comfort” letter from the Company’s independent registered public accountants in the event of an Underwritten Registration, in customary form and covering such matters of the type customarily covered by “cold comfort” letters as the managing Underwriter may reasonably request, and reasonably satisfactory to such managing Underwriter;

3.1.13 on the date the Registrable Securities are delivered for sale pursuant to an Underwritten Registration, obtain an opinion and negative assurance letter, each dated such date, of counsel representing the Company for the purposes of such Underwritten Registration, addressed to the Underwriters covering such legal matters with respect to the Underwritten Registration in respect of which such opinion is being given as the managing Underwriter may reasonably request and as are customarily included in such opinions and negative assurance letters, and reasonably satisfactory to such managing Underwriter;

3.1.14 in the event of any Underwritten Offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing Underwriter of such offering;

3.1.15 make available to its security holders, as soon as reasonably practicable, an earnings statement covering the period of at least twelve (12) months beginning with the first day of the Company’s first full calendar quarter after the effective date of the Registration Statement which satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder (or any successor rule promulgated thereafter by the Commission); provided, that the Company will not have any obligation to provide any information pursuant to this clause that is available on the Commission’s XXXXX system;

3.1.16 if the Registration involves the Registration of Registrable Securities involving gross proceeds in excess of $50,000,000, use its reasonable efforts to make available senior executives of the Company to participate in customary “road show” presentations that may be reasonably requested by the Underwriter in any Underwritten Offering; and

3.1.17 otherwise, in good faith, cooperate reasonably with, and take such customary actions as may reasonably be requested by the Holders, in connection with such Registration.

Section 3.2 Registration Expenses. The Registration Expenses of all Registrations shall be borne by the Company. It is acknowledged by the Holders that the Holders shall bear all incremental selling expenses relating to the sale of Registrable Securities, such as Underwriters’ commissions and discounts, brokerage fees, Underwriter marketing costs and, other than as set forth in the definition of “Registration Expenses,” all reasonable fees and expenses of one legal counsel representing the Holders not to exceed $50,000 per Registration.

Section 3.3 Requirements for Participation in Underwritten Offerings. No person may participate in any Underwritten Offering for equity securities of the Company pursuant to a Registration initiated by the Company hereunder unless such person (i) agrees to sell such person’s securities on the basis provided in any underwriting arrangements approved by the Company and (ii) completes and executes all customary questionnaires, powers of attorney, indemnities, lock-up agreements, underwriting agreements and other customary documents as may be reasonably required under the terms of such underwriting arrangements. Notwithstanding anything in this Agreement to the contrary, if any Holder does not complete and/or execute such documents or does not otherwise provide the Company with such information with respect to such Holder as the Company reasonably requests for use in connection with any such Registration Statement or Prospectus covering Registrable Securities of such Holder within two (2) Business Days prior to filing the filing of the applicable “red xxxxxxx” prospectus or prospectus supplement, the Company may exclude such Holder’s Registrable Securities from the applicable Registration Statement or Prospectus if the Company determines, based on the advice of counsel, that such information is necessary to effect the registration and such Holder continues thereafter to withhold such information.

Section 3.4 Suspension of Sales. Upon receipt of written notice from the Company that a Registration Statement or Prospectus contains a Misstatement, each of the Holders shall forthwith discontinue disposition of Registrable Securities until he, she or it has received copies of a supplemented or amended Prospectus correcting the Misstatement (it being understood that the Company hereby covenants to prepare and file such supplement or amendment as soon as practicable after the time of such notice), or until he, she or it is advised in writing by the Company that the use of the Prospectus may be resumed. Notwithstanding anything to the contrary in this Agreement, the Company shall be entitled to delay or postpone the filing or effectiveness of a Registration Statement, and from time to time to require the Holders not to sell under a Registration Statement or to suspend the effectiveness thereof, if the negotiation or consummation of a transaction by the Company or its subsidiaries is pending or an event has occurred, which negotiation, consummation or event the Board reasonably believes would require additional disclosure by the Company in the Registration Statement of material information that the Company has a bona fide business purpose for keeping confidential and the non-disclosure of which in the Registration Statement would be expected, in the reasonable determination of the Board to cause the Registration Statement to fail to comply with applicable disclosure requirements (each such circumstance, a “Suspension Event”); provided, however, that the Company may not delay or suspend a Registration Statement for the shortest period of time, but in no event more than thirty (30) days, determined in good faith by the Company to be necessary for such purpose. Upon receipt of any written notice from the Company of the happening of any Suspension Event during the period that a Registration Statement is effective or if as a result of a Suspension Event a Registration Statement or related prospectus contains any Misstatement, the Holders agree that (i) they will immediately discontinue offers and sales of the Shares under such Registration Statement (excluding, for the avoidance of doubt, sales conducted pursuant to Rule 144) until the Holders receive copies of a supplemental or amended prospectus (which the Company agrees to promptly prepare) that corrects the Misstatements referred to above and receives notice that any post-effective amendment has become effective or unless otherwise notified by the Company that it may resume such offers and sales, and (ii) they will maintain the confidentiality of any information included in such written notice delivered by the Company unless otherwise required by law or subpoena. If so directed by the Company, the Holders will deliver to the Company or, in each Holder’s sole discretion destroy, all copies of the prospectus covering the Shares in such Holder’s possession; provided, however, that this obligation to deliver or destroy all copies of the prospectus covering the Shares shall not apply (i) to the extent the Holder is required to

retain a copy of such prospectus (a) in order to comply with applicable legal, regulatory, self-regulatory or professional requirements or (b) in accordance with a bona fide pre-existing document retention policy or (ii) to copies stored electronically on archival servers as a result of automatic data back-up.

Section 3.5 Reporting Obligations. As long as any Holder shall own Registrable Securities, the Company, at all times while it shall be a reporting company under the Exchange Act, covenants to file timely (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to Sections 13(a) or 15(d) of the Exchange Act and to promptly furnish the Holders with true and complete copies of all such filings; provided that any documents publicly filed or furnished with the Commission on XXXXX shall be deemed to have been furnished or delivered to the Holders pursuant to this Section. The Company further covenants that it shall take such further action as any Holder may reasonably request, all to the extent required from time to time to enable such Holder to sell shares of Common Stock held by such Holder without registration under the Securities Act within the limitation of the exemptions provided by Rule 144 promulgated under the Securities Act (or any successor rule promulgated thereafter by the Commission), including providing any legal opinions at the Company’s expense. Upon the request of any Holder, the Company shall deliver to such Holder a written certification of a duly authorized officer as to whether it has complied with such requirements.

ARTICLE IV
INDEMNIFICATION AND CONTRIBUTION

Section 4.1 Indemnification

4.1.1 The Company agrees to indemnify, to the extent permitted by law, each Holder of Registrable Securities, its officers and directors and agents and each person who controls such Holder (within the meaning of the Securities Act) against all losses, claims, damages, liabilities and expenses (including reasonable attorneys’ fees) caused by any actual or alleged Misstatement, except insofar as the same are caused by or contained in any information furnished in writing to the Company by such Holder expressly for use therein.

4.1.2 In connection with any Registration Statement in which a Holder of Registrable Securities is participating, such Holder shall furnish to the Company in writing such information and affidavits as the Company reasonably requests for use in connection with any such Registration Statement or Prospectus and, to the extent permitted by law, shall indemnify the Company, its directors and officers and agents and each person who controls the Company (within the meaning of the Securities Act) against any losses, claims, damages, liabilities and expenses (including without limitation reasonable attorneys’ fees) resulting from any actual Misstatement, but only to the extent that such actual or alleged Misstatement is made in reliance on and in conformity with any information or affidavit so furnished in writing by or on behalf of such Holder expressly for use therein; provided, however, that the obligation to indemnify shall be several, not joint and several, among such Holders of Registrable Securities, and the liability of each such Holder of Registrable Securities shall be in proportion to and limited to the net proceeds received by such Holder from the sale of Registrable Securities pursuant to such Registration Statement.

4.1.3 Any person entitled to indemnification herein shall (i) give prompt written notice to the indemnifying party of any claim with respect to which it seeks indemnification (provided that the failure to give prompt notice shall not impair any person’s right to indemnification hereunder to the extent such failure has not materially prejudiced the indemnifying party) and (ii) unless in such indemnified party’s reasonable judgment a conflict of interest between such indemnified and indemnifying parties may exist with respect to such claim, permit such indemnifying party to assume the defense of such claim with counsel reasonably satisfactory to the indemnified party. If such defense is assumed, the indemnifying party shall not be subject to any liability for any settlement made by the indemnified party without its consent (but such consent shall not be unreasonably withheld). An indemnifying party who is not entitled to, or elects not to, assume the defense of a claim shall not be obligated to pay the fees and expenses of more than one counsel for all parties indemnified by such indemnifying party with respect to such claim, unless in the reasonable judgment of any indemnified party a conflict of interest may exist between such indemnified party and any other of such indemnified parties with respect to such claim. No indemnifying party shall, without the consent of the indemnified party, not to be unreasonably withheld or delayed, consent to the entry of any judgment or enter into any settlement which cannot be settled in all respects by the payment of money (and such money is so paid by the indemnifying party pursuant to the terms of such settlement) and which settlement does not include as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability in respect to such claim or litigation.

4.1.4 The indemnification provided for under this Agreement shall remain in full force and effect regardless of any investigation made by or on behalf of the indemnified party or any officer, director or controlling person of such indemnified party and shall survive the transfer of securities. The Company and each Holder of Registrable Securities participating in an offering also agrees to make such provisions as are reasonably

requested by any indemnified party for contribution to such party in the event the Company’s or such Xxxxxx’s indemnification is unavailable for any reason.

4.1.5 If the indemnification provided under Section 4.1 hereof from the indemnifying party is held by a court of competent jurisdiction to be unavailable or insufficient to hold harmless to an indemnified party in respect of any losses, claims, damages, liabilities and expenses referred to herein, then the indemnifying party, in lieu of indemnifying the indemnified party, shall contribute to the amount paid or payable by the indemnified party as a result of such losses, claims, damages, liabilities and expenses in such proportion as is appropriate to reflect the relative fault of the indemnifying party and the indemnified party, as well as any other relevant equitable considerations. The relative fault of the indemnifying party and indemnified party shall be determined by reference to, among other things, whether any action in question, including any actual or alleged Misstatement, was made by, or relates to information supplied by, such indemnifying party or indemnified party, and the indemnifying party’s and indemnified party’s relative intent, knowledge, access to information and opportunity to correct or prevent such action; provided, however, that the liability of any Holder under this subsection 4.1.5 shall be limited to the amount of the net proceeds received by such Holder in such offering giving rise to such liability. The amount paid or payable by a party as a result of the losses or other liabilities referred to above shall be deemed to include, subject to the limitations set forth in subsections 4.1.1, 4.1.2 and 4.1.3 above, any legal or other fees, charges or expenses reasonably incurred by such party in connection with any investigation or proceeding. The parties hereto agree that it would not be just and equitable if contribution pursuant to this subsection 4.1.5 were determined by pro rata allocation or by any other method of allocation, which does not take account of the equitable considerations referred to in this subsection 4.1.5. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution pursuant to this subsection 4.1.5 from any person who was not guilty of such fraudulent misrepresentation.

ARTICLE V
GENERAL PROVISIONS

Section 5.1 Entire Agreement. Except as expressly set forth herein, this Agreement (including the exhibits attached hereto) and the Transaction Documents (as defined in the Purchase Agreement) constitute the entire agreement and understanding of the Company and the Holder with respect to the subject matter hereof and supersede all prior agreements and understandings relating to the subject matter hereof.

Section 5.2 Notices. All notices and other communications required or permitted hereunder shall be in writing and shall be mailed by registered or certified mail, postage prepaid, sent by facsimile or electronic mail or otherwise delivered by hand, messenger or courier service addressed:

(a) if to the Holder:

Honeywell ACS Ventures LLC
c/o Honeywell International Inc.
000 X. Xxxx Xxxxxx
Xxxxxxxxx, XX 00000
Attention: Xxxx Xxxxxx and Xxxx Xxxxxxxxx
Email: […]

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

Blank Rome LLP
0000 Xxxxx Xxxxxx
Xxx Xxxx, XX 00000
Attention: Xxxxxxxx X. Xxxxxxxxxx
Email: Xxxxxxxx.xxxxxxxxxx@xxxxxxxxx.xxx

or at such other address as the Holder shall have furnished to the Company.

(b) if to the Company:

ESS Tech, Inc.
00000 XX Xxxxxxx Xxx., Xxxx. 00
Xxxxxxxxxxx, XX 00000
Attention: Xxxxx X. Xxxxxxx
Email: […]

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

Xxxxxx Xxxxxxx Xxxxxxxx & Xxxxxx, P.C.
650 Page Mill Rd

Xxxx Xxxx, XX 00000
Attention: Xxxx Xxxxxxx, Xxxxxx Xxxxxxxxxx
Email: xxxxxxxx@xxxx.xxx, xxxxxxxxxxx@xxxx.xxx

or at such other address as the Company shall have furnished to the Holder.

Each such notice or other communication shall for all purposes of this Agreement be treated as effective or having been given (i) if delivered by hand, messenger or courier service, when delivered (or if sent via a nationally-recognized overnight courier service, freight prepaid, specifying next-business-day delivery, one business day after deposit with the courier), (ii) if sent by mail, at the earlier of its receipt or five days after the same has been deposited in a regularly maintained receptacle for the deposit of the United States mail, addressed and mailed as aforesaid, or (iii) if sent via electronic mail, upon confirmation of delivery when directed to the relevant electronic mail address, if sent during normal business hours of the recipient, or if not sent during normal business hours of the recipient, then on the recipient’s next business day.

Section 5.3 Assignment; No Third-Party Beneficiaries. This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole or in part. This Agreement and the rights, duties and obligations of the Holders of Registrable Securities hereunder may be freely assigned or delegated by such Holder of Registrable Securities in conjunction with and to the extent of any transfer of Registrable Securities by any such Holder. This Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties and the permitted assigns of the applicable holder of Registrable Securities or of any assignee of the applicable holder of Registrable Securities. This Agreement is not intended to confer any rights or benefits on any persons that are not party hereto other than as expressly set forth in Article 4 and this Section 5.3. No assignment by any party hereto of such party’s rights, duties and obligations hereunder shall be binding upon or obligate the Company unless and until the Company shall have received a joinder to this Agreement in the form attached as Exhibit A hereto. Any transfer, assignment or delegation made other than as provided in this Section 5.3 shall be null and void.

Section 5.4 Counterparts. This Agreement may be executed in one or more counterparts, all of which shall be considered one and the same agreement and shall become effective when one or more counterparts have been signed by each of the parties (including by electronic signature covered by the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act, the Electronic Signatures and Records Act or other applicable law, e.g., xxx.xxxxxxxx.xxx) and delivered to the other parties, it being understood that all parties need not sign the same counterpart and such counterparts may be delivered by the parties hereto via facsimile or electronic transmission.

Section 5.5 Amendment; Waiver. This Agreement may be amended or modified, and any provision hereof may be waived, in whole or in part, at any time pursuant to an agreement in writing executed by (i) the Company, and (ii) holders of a majority of the Registrable Securities held at such time; provided, however, that notwithstanding the foregoing, any amendment hereto or waiver hereof that materially and adversely affects one Holder, solely in his, her or its capacity as a holder of the shares of capital stock of the Company, in a manner that is materially different from the other Holders (in such capacity) shall require the consent of the Holder so affected. No waiver of any single breach or default shall be deemed a waiver of any other breach or default theretofore or thereafter occurring.

Section 5.6 Severability.. If any provision of this Agreement becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, portions of such provision, or such provision in its entirety, to the extent necessary, shall be severed from this Agreement, and such illegal, unenforceable or void provision shall be replaced with a valid and enforceable provision that will achieve, to the extent possible, the same economic, business and other purposes of the illegal, unenforceable or void provision. The balance of this Agreement shall be enforceable in accordance with its terms.

Section 5.7 Governing Law. This Agreement and all actions arising out of or in connection with this Agreement shall be governed by and construed in accordance with the laws of the State of Delaware, without regard to the conflicts of law provisions of the State of Delaware, or of any other state.

Section 5.8 Jurisdiction and Venue. Each of the Holder and the Company hereby submits and consents irrevocably to the exclusive jurisdiction of the courts of the State of Delaware and the United States District Court for the District of Delaware for the interpretation and enforcement of the provisions of this Agreement and all actions arising out of or in connection with this Agreement. Each of the Holder and the Company also agrees that the jurisdiction over such persons and the subject matter of such dispute shall be effected by the mailing of process or other papers in connection with any such action in the manner provided for in Section 9.3 or in such other manner as may be lawful, and that service in such manner shall constitute valid and sufficient service of process

Section 5.9 Specific Performance. Each party acknowledges and agrees that money damages would not be a sufficient remedy for any breach (or threatened breach) of this Agreement by it and that, in the event of any breach or threatened breach of this Agreement, (a) the party seeking specific performance will be entitled to

injunctive and other equitable relief, without proof of actual damages; (b) the party against whom specific performance is sought will not plead in defense that there would be an adequate remedy at law; and (c) the party against whom specific performance is sought agrees to waive any applicable right or requirement that a bond be posted. Such remedies will not be the exclusive remedies for a breach of this Agreement, but will be in addition to all other remedies available at law or in equity.

Section 5.10 Term. This Agreement shall terminate with respect to any Holder upon the date as of which such Holder ceases to hold any Registrable Securities. The provisions of Article 4 shall survive any termination.

Section 5.11 Titles and Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not to be considered in construing or interpreting this Agreement. All references in this Agreement to sections, paragraphs and exhibits shall, unless otherwise provided, refer to sections and paragraphs hereof and exhibits attached hereto.

Section 5.12 Waiver of Jury Trial. EACH OF THE HOLDER AND THE COMPANY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATED TO THIS AGREEMENT.

Section 5.13 Saturdays, Sundays and Holidays. If the last or appointed day for the taking of any action or the expiration of any right required or granted herein shall be a Saturday, Sunday or U.S. federal holiday, then such action may be taken or such right may be exercised on the next succeeding day that is not a Saturday, Sunday or U.S. federal holiday.

Section 5.14 Further Assurances. Each of the Company and the Holder agrees to execute and deliver, by the proper exercise of its corporate, limited liability company, partnership or other powers, all such other and additional instruments and documents and do all such other acts and things as may be reasonably necessary to more fully effectuate this Agreement.

[Signature Pages Follow]

IN WITNESS WHEREOF, each of the parties has executed this Agreement as of the date first written above.

COMPANY:

ESS TECH, INC.

By: /s/ Xxxx X. Xxxxxxxxxxx

Name: Xxxx X. Xxxxxxxxxxx

Title: Chief Executive Officer

[Signature Page to Registration Rights Agreement]

HOLDER:

HONEYWELL ACS VENTURES LLC

By its managing member:

HONEYWELL INTERNATIONAL INC.

By: /s/ Xxxxx Xxxxxxxxx

Name: Xxxxx Xxxxxxxxx

Title: Senior Vice President, Corporate Development

and Global Head of M&A

[Signature Page to Registration Rights Agreement]

EXHIBIT A

This JOINDER AND AGREEMENT (this “Joinder”) is made this [ ] by the undersigned (the “Joining Party”), pursuant to that certain Registration Rights Agreement (the “Registration Rights Agreement”), dated as of September 21, 2023 by and between ESS Tech, Inc. (the “Company”) and Honeywell ACS Ventures LLC (“ACS”), and the other Holders party thereto. Capitalized terms used herein but not otherwise defined herein shall have the meanings ascribed to them in the Registration Rights Agreement.

W I T N E S S E T H:

WHEREAS, concurrently with the execution and delivery of this Joinder, each Joining Party shall become a party to the Registration Rights Agreement and a Holder thereunder.

NOW, THEREFORE, in consideration of the agreements and obligations set forth herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows:

1.Each Joining Party acknowledges and agrees that by execution and delivery of this Joinder, such Joining Party becomes a party to the Registration Rights Agreement and a Holder thereunder, subject to the terms, conditions, restrictions, representations, warranties, obligations, agreements and covenants set forth therein. Each Joining Party hereby acknowledges that such Joining Party has reviewed a copy of the Registration Rights Agreement.

2.Notwithstanding the place where this Xxxxxxx may be executed by the undersigned, each Joining Party expressly agrees that this Joinder shall be governed and construed under the laws of the State of Delaware, without regard to conflicts of laws and principles thereof.

3.If any term, provision, covenant or restriction of this Joinder is held to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated thereby.

[Signature Page Follows]

IN WITNESS WHEREOF, the undersigned have entered into this Joinder as of the date first above stated.


			JOINING PARTY:

[ ]

By:_________________________

Name:

Title:


Acknowledged and Agreed:

ESS TECH, INC.

By:
			Name:
			Title:

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REGISTRATION RIGHTS AGREEMENT

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