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AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT
THIS AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of May 10, 2021, is made and entered into by and among EOS Energy Enterprises, Inc. (formerly known as B. Riley Principal Merger Corp II), a Delaware corporation (the “Company”), B. Riley Principal Sponsor Co. II, LLC, a Delaware limited liability company (the “Sponsor”) and each of the undersigned individuals (together with the Sponsor, the Existing Holders (defined below) and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 of this Agreement, a “Holder” and collectively the “Holders”).
RECITALS
WHEREAS, the Registration Rights Agreement (the “Existing RRA”), dated as of May 19, 2020, was made and entered into by and among the Company, the Sponsor and each of the undersigned individuals thereto (collectively, the “Existing Holders”).
WHEREAS, the Company issued 5,031,250 shares of its Class B common stock, par value $0.0001 per share (the “Founder Shares”), which were converted into shares of the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”), on the terms and conditions provided in the Company’s second amended and restated certificate of incorporation;
WHEREAS, on May 19, 2020, the Company and the Sponsor entered into that certain Private Placement Units Purchase Agreement (the “Private Placement Units Purchase Agreement”), pursuant to which the Sponsor agreed to purchase an aggregate of 650,000 private placement units (or up to 728,750 units to the extent that the over-allotment option in connection with the Company’s initial public offering is exercised) (the “Private Placement Units”) in a private placement transaction occurring simultaneously with the closing of the Company’s initial public offering;
WHEREAS, on May 19, 2020, the Company and B. Riley Principal Investments, LLC (the “Forward Purchaser”) entered into that certain Forward Purchase Agreement (the “Forward Purchase Agreement”), pursuant to which the Forward Purchaser agreed to purchase an aggregate of 2,500,000 forward purchase units (the “Forward Purchase Units”) in a private placement transaction to close concurrently with the closing of the initial Business Combination (as defined below);
WHEREAS, in order to finance the Company’s transaction costs in connection with its search for and consummation of an initial Business Combination, the Sponsor or an affiliate of the Sponsor or certain of the Company’s officers and directors may loan to the Company funds as the Company may require, of which up to $1,500,000 of such loans may be convertible into private placement-equivalent units (“Working Capital Units”) at a price of $10.00 per unit at the option of the lender; 
WHEREAS, on November 16, 2020, the Company closed the business combination contemplated by that certain Agreement and Plan of Merger, dated as of September 7, 2020, among B. Riley Principal Merger Corp. II, BMRG Merger Sub, LLC, BMRG Merger Sub II, LLC, Eos Energy Storage, LLC, New Eos Energy LLC and AltEnergy Storage VI, LLC; and

    

WHEREAS, the Company and the Holders desire to enter into this Agreement, pursuant to which the Company shall grant the Holders certain registration rights with respect to certain securities of the Company, as set forth in this Agreement.
NOW, THEREFORE, in consideration of the representations, covenants and agreements contained herein, and certain other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:
ARTICLE I
DEFINITIONS

1.1    Definitions.  The terms defined in this Article I shall, for all purposes of this Agreement, have the respective meanings set forth below:
“Adverse Disclosure” shall mean any public disclosure of material non-public information, which disclosure, in the good faith judgment of the Chief Executive Officer or principal financial officer of the Company, after consultation with counsel to the Company, (i) would be required to be made in any Registration Statement or Prospectus in order for the applicable Registration Statement or Prospectus not to contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements contained therein (in the case of any prospectus and any preliminary prospectus, in the light of the circumstances under which they were made) not misleading, (ii) would not be required to be made at such time if the Registration Statement were not being filed, and (iii) the Company has a bona fide business purpose for not making such information public.
“Agreement” shall have the meaning given in the Preamble.
“Board” shall mean the Board of Directors of the Company.
“Business Combination” shall mean any merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combination with one or more businesses, involving the Company.
“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.
“Demand Registration” shall have the meaning given in subsection 2.1.1.
“Demanding Holder” 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 have the meaning given in subsection 2.1.1.
“Form S-3” shall have the meaning given in subsection 2.3.
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“Forward Purchase Agreement” shall have the meaning given in the Recitals hereto.
“Forward Purchaser” shall have the meaning given in the Recitals hereto.
“Forward Purchase Units” shall have the meaning given in the Recitals hereto.
“Founder Shares” shall have the meaning given in the Recitals hereto and shall be deemed to include the shares of Common Stock issuable upon conversion thereof.
“Founder Shares Lock-up Period” shall mean, with respect to the Founder Shares, the period ending on the earlier of (A) one year after the completion of the Company’s initial Business Combination or (B) subsequent to the Business Combination, (x) if the last sale price of the Common Stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the Company’s initial Business Combination or (y) the date on which the Company completes a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property; provided, in the case of clause (B) (x), the Founder Shares Lock-up Period shall end no earlier than August 1, 2021. 
“Holders” shall have the meaning given in the Preamble.
“Insider Letter” shall mean that certain letter agreement, dated as of May 19, 2020, by and among the Company, the Sponsor and each of the Company’s officers, directors and director nominees.
“Maximum Number of Securities” shall have the meaning given in subsection 2.1.4.
“Misstatement” shall mean an untrue statement of a material fact or an omission to state a material fact required to be stated in a Registration Statement or Prospectus, or necessary to make the statements in a Registration Statement or Prospectus (in the light of the circumstances under which they were made) not misleading.
“MNPI” means material non-public information within the meaning of Regulation FD promulgated under the Exchange Act, which shall in any case include the receipt of any notice delivered by the Company under this Agreement, including pursuant to Article II hereof and the information contained in any such notice.
“Permitted Transferees” shall mean any person or entity to whom a Holder of Registrable Securities is permitted to transfer such Registrable Securities prior to the expiration of the Founder Shares Lock-up Period, Private Placement Lock-up Period or any other lock-up period, as the case may be, under the Insider Letter, the Private Placement Units Purchase Agreement, the Forward Purchase Agreement, this Agreement and any other applicable agreement between such Holder and the Company, and to any transferee thereafter.
“Piggyback Registration” shall have the meaning given in subsection 2.2.1.
“Private Placement Lock-up Period” shall mean with respect to Private Placement Units that are held by the initial purchasers of such Private Placement Units or their Permitted 
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Transferees, the private placement shares, private placement warrants and shares of Common Stock issuable upon the exercise of the private placement warrants, and that are held by the initial purchasers of the Private Placement Units or their Permitted Transferees, the period ending on August 1, 2021.
“Private Placement Units” shall have the meaning given in the Recitals hereto.
“Private Placement Units Purchase Agreement” shall have the meaning given in the Recitals hereto.
“Pro Rata” shall have the meaning given in subsection 2.1.4.
“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) the Founder Shares and the shares of Common Stock issued or issuable upon the conversion of the Founder Shares, (b) the Private Placement Units (including any shares of Common Stock and private placement warrants included in such Private Placement Units and any shares of Common Stock issued or issuable upon the exercise of the private placement warrants underlying the Private Placement Units), (c) the Forward Purchase Units (including any shares of Common Stock and private placement warrants included in such Forward Purchase Units and any shares of Common Stock issued or issuable upon the exercise of the private placement warrants underlying the Forward Purchase Units) (d) any outstanding shares of Common Stock or any other equity security (including the shares of Common Stock issued or issuable upon the exercise of any other equity security) of the Company held by a Holder as of the date of this Agreement, (e) any equity securities (including the shares of Common Stock issued or issuable upon the exercise of any such equity security) of the Company issuable upon conversion of any working capital loans in an amount up to $1,500,000 made to the Company by a Holder (including the Working Capital Units, any shares of Common Stock underlying the Working Capital Units, the private placement warrants underlying the Working Capital Units and shares of Common Stock issued or issuable upon the exercise of the private placement warrants underlying the Working Capital Units) and (f) any other equity security of the Company issued or issuable with respect to any such share of Common Stock 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 securities shall cease to be Registrable Securities when: (A) a Registration Statement with respect to the sale of such securities shall have become effective under the Securities Act and such securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (B) such securities shall have been otherwise transferred, new certificates for such securities not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of such securities shall not require registration under the Securities Act; (C) such securities shall have ceased to be outstanding; (D) such securities may be sold without registration pursuant to Rule 144 promulgated under the Securities Act (or any successor rule promulgated thereafter by the Commission) (but with no volume or other restrictions or limitations); or (E) such securities have been sold to, or through, a broker, dealer or underwriter in a public distribution or other public securities transaction.
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“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 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 securities exchange 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);
(C)    printing, messenger, telephone and delivery expenses;
(D)    reasonable fees and disbursements of counsel for the Company;
(E)    reasonable fees and disbursements of all independent registered public accountants of the Company incurred specifically in connection with such Registration; and
(F)    reasonable fees and expenses of one (1) legal counsel selected by the majority-in-interest of the Demanding Holders initiating a Demand Registration to be registered for offer and sale in the applicable Registration.
“Registration Statement” shall mean any registration statement 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.
“Requesting Holder” 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.
“Sponsor” shall have the meaning given in the Recitals hereto.
“Working Capital Units” shall have the meaning given in the Recitals hereto.
“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.
ARTICLE II
REGISTRATIONS
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2.1    Demand Registration.  
2.1.1    Request for Registration.  Subject to the provisions of subsection 2.1.4 and Section 2.4 hereof, at any time and from time to time on or after the date the Company consummates the Business Combination, the Holders of at least fifteen percent (15%) of the then-outstanding number of Registrable Securities (the “Demanding Holders”) may make a written demand for Registration of all or part of their Registrable Securities, which written demand shall describe the amount and type of securities to be included in such Registration and the intended method(s) of distribution thereof (such written demand a “Demand Registration”). The Company shall, within ten (10) days of the Company’s receipt of the Demand Registration, notify, in writing, all other Holders of Registrable Securities of such demand, and each Holder of Registrable Securities who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in a Registration pursuant to a Demand Registration (each such Holder that includes all or a portion of such Holder’s Registrable Securities in such Registration, a “Requesting Holder”) shall so notify the Company, in writing, within five (5) days after the receipt by the Holder of the notice from the Company. Upon receipt by the Company of any such written notification from a Requesting Holder(s) to the Company, such Requesting Holder(s) shall be entitled to have their Registrable Securities included in a Registration pursuant to a Demand Registration and the Company shall effect, as soon thereafter as practicable, but not more than forty five (45) days immediately after the Company’s receipt of the Demand Registration, the Registration of all Registrable Securities requested by the Demanding Holders and Requesting Holders pursuant to such Demand Registration. Under no circumstances shall the Company be obligated to effect more than an aggregate of three (3) Registrations pursuant to a Demand Registration under this subsection 2.1.1 with respect to any or all Registrable Securities; provided, however, that a Registration shall not be counted for such purposes unless a Form S-1 or any similar long-form registration statement that may be available at such time (“Form S-1”) has become effective and all of the Registrable Securities requested by the Requesting Holders to be registered on behalf of the Requesting Holders in such Form S-1 Registration have been sold, in accordance with Section 3.1 of this Agreement.
2.1.2    Effective Registration.  Notwithstanding the provisions of subsection 2.1.1 above or any other part of this Agreement, a Registration pursuant to a Demand Registration shall not count as a Registration unless and until (i) the Registration Statement filed with the Commission with respect to a Registration pursuant to a Demand Registration has been declared effective by the Commission and (ii) the Company has complied with all of its obligations under this Agreement with respect thereto; provided, further, that if, after such Registration Statement has been declared effective, an offering of Registrable Securities in a Registration pursuant to a Demand Registration is subsequently interfered with by any stop order or injunction of the Commission, federal or state court or any other governmental agency the Registration Statement with respect to such Registration shall be deemed not to have been declared effective, unless and until, (i) such stop order or injunction is removed, rescinded or otherwise terminated, and (ii) a majority-in-interest of the Demanding Holders initiating such Demand Registration thereafter affirmatively elect to continue with such Registration and accordingly notify the Company in writing, but in no event later than five (5) days, of such election; and provided, further, that the Company shall not be obligated or required to file another Registration Statement until the Registration Statement that has been previously filed with respect to a Registration pursuant to a Demand Registration becomes effective or is subsequently terminated.
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2.1.3    Underwritten Offering.  Subject to the provisions of subsection 2.1.4 and Section 2.4 hereof, if a majority-in-interest of the Demanding Holders so advise the Company as part of their Demand Registration that the offering of the Registrable Securities pursuant to such Demand Registration shall be in the form of an Underwritten Offering, then the right of such Demanding Holder or Requesting Holder (if any) to include its Registrable Securities in such Registration shall be conditioned upon such Holder’s participation in such Underwritten Offering and the inclusion of such Holder’s Registrable Securities in such Underwritten Offering to the extent provided herein. All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this subsection 2.1.3 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the majority-in-interest of the Demanding Holders initiating the Demand Registration.
2.1.4    Reduction of Underwritten Offering.  If the managing Underwriter or Underwriters in an Underwritten Registration pursuant to a Demand Registration, in good faith, advises the Company, the Demanding Holders and the Requesting Holders (if any) in writing that the dollar amount or number of Registrable Securities that the Demanding Holders and the Requesting Holders (if any) desire to sell, taken together with all other Common Stock or other equity securities that the Company desires to sell and the Common Stock, if any, as to which a Registration has been requested pursuant to separate written contractual piggy-back registration rights held by any other stockholders who desire to sell, exceeds the maximum dollar amount or maximum number of equity securities that can be sold in the Underwritten Offering without adversely affecting the proposed offering price, the timing, the distribution method, or the probability of success of such offering (such maximum dollar amount or maximum number of such securities, as applicable, the “Maximum Number of Securities”), then the Company shall include in such Underwritten Offering, as follows: (i) first, the Registrable Securities of the Demanding Holders and the Requesting Holders (if any) (pro rata based on the respective number of Registrable Securities that each Demanding Holder and Requesting Holder (if any) has requested be included in such Underwritten Registration and the aggregate number of Registrable Securities that the Demanding Holders and Requesting Holders have requested be included in such Underwritten Registration (such proportion is referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Securities; (ii) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (i), the Registrable Securities of Holders (Pro Rata, based on the respective number of Registrable Securities that each Holder has so requested) exercising their rights to register their Registrable Securities pursuant to subsection 2.2.1 hereof, without exceeding the Maximum Number of Securities; and (iii) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (i) and (ii), the Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; and (iv) fourth, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (i), (ii) and (iii), the Common Stock or other equity securities of other persons or entities that the Company is obligated to register in a Registration pursuant to separate written contractual arrangements with such persons and that can be sold without exceeding the Maximum Number of Securities.
2.1.5    Demand Registration Withdrawal.  A majority-in-interest of the Demanding Holders initiating a Demand Registration or a majority-in-interest of the Requesting Holders (if any), pursuant to a Registration under subsection 2.1.1 shall have the right to withdraw from a Registration pursuant to such Demand Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters (if any) of their intention to 
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withdraw from such Registration prior to the effectiveness of the Registration Statement filed with the Commission with respect to the Registration of their Registrable Securities pursuant to such Demand Registration. Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred in connection with a Registration pursuant to a Demand Registration prior to its withdrawal under this subsection 2.1.5.
2.2    Piggyback Registration.  
2.2.1    Piggyback Rights.  If, at any time on or after the date the Company consummates a Business Combination, 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 including, without limitation, pursuant to Section 2.1 hereof), 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 or (iv) for a dividend reinvestment plan, then the Company shall give written notice of such proposed filing to all of the Holders of Registrable Securities 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 2.2.1 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 2.2.1 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Company.
2.2.2    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 the Common Stock that the Company desires to sell, taken together with (i) the 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 2.2 hereof, and (iii) the 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:
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(a)    If the Registration is undertaken for the Company’s account, the Company shall include in any such Registration (A) first, the 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 2.2.1 hereof, Pro Rata, 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), the 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;
(b)    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, the 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 2.2.1, pro rata based on the number of Registrable Securities that each Holder has requested be included in such Registration and the aggregate number of Registrable Securities that the Holders have requested to be included in such 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), the 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), the 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.
2.2.3    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 2.2.3.
2.2.4    Unlimited Piggyback Registration Rights.  For purposes of clarity, any Registration effected pursuant to Section 2.2 hereof shall not be counted as a Registration pursuant to a Demand Registration effected under Section 2.1 hereof. In addition, no written notice of a Piggyback Registration expected to be consummated prior to the expiration of the 
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Founder Shares Lock-up Period or Private Placement Lock-up Period shall be required to be delivered by applicable holders thereof under this Section 2.2.
2.3    Registrations on Form S-3.  The Holders of Registrable Securities may at any time, and from time to time, request in writing that the Company, pursuant to Rule 415 under the Securities Act (or any successor rule promulgated thereafter by the Commission), register the resale of any or all of their Registrable Securities on Form S-3 or any similar short form registration statement that may be available at such time (“Form S-3”); provided, however, that the Company shall not be obligated to effect such request through an Underwritten Offering. Within five (5) days of the Company’s receipt of a written request from a Holder or Holders of Registrable Securities for a Registration on Form S-3, the Company shall promptly give written notice of the proposed Registration on Form S-3 to all other Holders of Registrable Securities, and each Holder of Registrable Securities who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in such Registration on Form S-3 shall so notify the Company, in writing, within ten (10) days after the receipt by the Holder of the notice from the Company. As soon as practicable thereafter, but not more than twelve (12) days after the Company’s initial receipt of such written request for a Registration on Form S-3, the Company shall register all or such portion of such Holder’s Registrable Securities as are specified in such written request, together with all or such portion of Registrable Securities of any other Holder or Holders joining in such request as are specified in the written notification given by such Holder or Holders; provided, however, that the Company shall not be obligated to effect any such Registration pursuant to Section 2.3 hereof if (i) a Form S-3 is not available for such offering; or (ii) the Holders of Registrable Securities, together with the Holders of any other equity securities of the Company entitled to inclusion in such Registration, propose to sell the Registrable Securities and such other equity securities (if any) at any aggregate price to the public of less than $10,000,000.
2.4    Restrictions on Registration Rights.  If (A) during the period starting with the date sixty (60) days prior to the Company’s good faith estimate of the date of the filing of, and ending on a date one hundred and twenty (120) days after the effective date of, a Company initiated Registration and provided that the Company has delivered written notice to the Holders prior to receipt of a Demand Registration pursuant to subsection 2.1.1 and it continues to actively employ, in good faith, all reasonable efforts to cause the applicable Registration Statement to become effective; (B) the Holders have requested an Underwritten Registration and the Company and the Holders are unable to obtain the commitment of underwriters to firmly underwrite the offer; or (C) in the good faith judgment of the Board such Registration would be seriously detrimental to the Company and the Board concludes as a result that it is essential to defer the filing of such Registration Statement at such time, then in each case the Company shall furnish to such Holders a certificate signed by the Chairman of the Board stating that in the good faith judgment of the Board it would be seriously detrimental to the Company for such Registration Statement to be filed in the near future and that it is therefore essential to defer the filing of such Registration Statement. In such event, the Company shall have the right to defer such filing for a period of not more than thirty (30) days; provided, however, that the Company shall not defer its obligation in this manner more than once in any 12-month period.

ARTICLE III
COMPANY PROCEDURES

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3.1    General Procedures.  If at any time on or after the date the Company consummates a Business Combination the Company is required to effect the Registration of Registrable Securities, the Company shall use its 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;
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 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;
3.1.3    prior to filing a Registration Statement or prospectus, or any amendment or supplement thereto, furnish without charge to the Underwriters, if any, and the Holders of Registrable Securities included in such Registration, and such Holders’ 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 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;
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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    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 or any document that is to be incorporated by reference into such Registration Statement or Prospectus, furnish a copy thereof to each seller of such Registrable Securities and its counsel, including, without limitation, providing copies promptly upon receipt of any comment letters received with respect to any such Registration Statement or Prospectus;
3.1.9    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;
3.1.10    permit a representative of the Holders (such representative to be selected by a majority of the participating 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; and provided further, the Company may not include the name of any Holder or Underwriter or any information regarding any Holder or Underwriter in any Registration Statement or Prospectus, any amendment or supplement to such Registration Statement or Prospectus, any document that is to be incorporated by reference into such Registration Statement or Prospectus, or any response to any comment letter, without the prior written consent of such Holder or Underwriter and providing each such Holder or Underwriter a reasonable amount of time to review and comment on such applicable document, which comments the Company shall include unless contrary to applicable law;
3.1.11    obtain a “cold comfort” letter from the Company’s independent registered public accountants in the event of an Underwritten Registration which the participating Holders may rely on, 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 a majority-in-interest of the participating Holders;
3.1.12    on the date the Registrable Securities are delivered for sale pursuant to such Registration, obtain an opinion, dated such date, of counsel representing the Company for the purposes of such Registration, addressed to the Holders, the placement agent or sales agent, if any, and the Underwriters, if any, covering such legal matters with respect to the Registration in respect of which such opinion is being given as the Holders, placement agent, sales agent, or 
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Underwriter may reasonably request and as are customarily included in such opinions and negative assurance letters, and reasonably satisfactory to a majority in interest of the participating Holders;
3.1.13    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;
3.1.14    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);
3.1.15    if the Registration involves the Registration of Registrable Securities involving gross proceeds in excess of $25,000,000, 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
3.1.16    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.
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 any legal counsel representing the Holders.
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.
3.4    Suspension of Sales; Adverse Disclosure.  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. If the filing, initial effectiveness or continued use of a Registration Statement in respect of any Registration at any time would require the Company to make an Adverse Disclosure or would require the inclusion in such Registration Statement of financial statements that are unavailable to the Company for reasons beyond the Company’s control, the Company may, upon giving prompt written notice of such action to the Holders, delay the filing or initial effectiveness of, or suspend use of, such 
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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. In the event the Company exercises its rights under the preceding sentence, the Holders agree to suspend, immediately upon their receipt of the notice referred to above, their use of the Prospectus relating to any Registration in connection with any sale or offer to sell Registrable Securities. The Company shall immediately notify the Holders of the expiration of any period during which it exercised its rights under this Section 3.4.
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. 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. 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.
3.6    Limitations on Registration Rights.  Notwithstanding anything herein to the contrary, the Sponsor, the Forward Purchaser and any transferee that is an underwriter and related party (as defined in FINRA Rule 5110 and 5121) in connection with the initial public offering of B. Riley Principal Merger Corp. II (i) may not exercise its rights under Section 2.1 and 2.2 hereunder after five (5) and seven (7) years, respectively, after the effective date of the registration statement relating to the Company’s initial public offering and (ii) may not exercise its rights under Section 2.1 more than one time.
ARTICLE IV
INDEMNIFICATION AND CONTRIBUTION

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 each person who controls such Holder (within the meaning of the Securities Act) against all losses, claims, damages, liabilities and expenses (including attorneys’ fees) caused by any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, 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. The Company shall indemnify the Underwriters, their officers and directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided in the foregoing with respect to the indemnification of the Holder.
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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 untrue statement of material fact contained in the Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement thereto or any omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, but only to the extent that such untrue statement or omission is contained in any information or affidavit so furnished in writing by 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. The Holders of Registrable Securities shall indemnify the Underwriters, their officers, directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided in the foregoing with respect to indemnification of the Company.
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 (a) 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 (plus local 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, 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) or 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 Holder’s indemnification is unavailable for any reason.
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4.1.5    If the indemnification provided under Section 4.1 hereof from the indemnifying party is unavailable or insufficient to hold harmless 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 untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact, 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
MISCELLANEOUS

5.1    Notices.  Any notice or communication under this Agreement must be in writing and given by (i) deposit in the United States mail, addressed to the party to be notified, postage prepaid and registered or certified with return receipt requested, (ii) delivery in person or by courier service providing evidence of delivery, or (iii) transmission by hand delivery, electronic mail, telecopy, telegram or facsimile. Each notice or communication that is mailed, delivered, or transmitted in the manner described above shall be deemed sufficiently given, served, sent, and received, in the case of mailed notices, on the third business day following the date on which it is mailed and, in the case of notices delivered by courier service, hand delivery, electronic mail, telecopy, telegram or facsimile, at such time as it is delivered to the addressee (with the delivery receipt or the affidavit of messenger) or at such time as delivery is refused by the addressee upon presentation. Any notice or communication under this Agreement must be addressed, if to the Company, to: 299 Park Avenue, 21st Floor, New York, New York 10171, and, if to any Holder, at such Holder’s address or contact information as set forth in the Company’s books and records. Any party may change its address for notice at any time and from time to time by written notice to the other parties hereto, and such change of address shall become effective thirty (30) days after delivery of such notice as provided in this Section 5.1.
5.2    Assignment; No Third Party Beneficiaries.  
5.2.1    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.
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5.2.2    Prior to the expiration of the Founder Shares Lock-up Period or the Private Placement Lock-up Period, as the case may be, no Holder may assign or delegate such Holder’s rights, duties or obligations under this Agreement, in whole or in part, except in connection with a transfer of Registrable Securities by such Holder to a Permitted Transferee but only if such Permitted Transferee agrees to become bound by the transfer restrictions set forth in this Agreement.
5.2.3    This Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties and its successors and the permitted assigns of the Holders, which shall include Permitted Transferees.
5.2.4    This Agreement shall not confer any rights or benefits on any persons that are not parties hereto, other than as expressly set forth in this Agreement and Section 5.2 hereof.
5.2.5    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 (i) written notice of such assignment as provided in Section 5.1 hereof and (ii) the written agreement of the assignee, in a form reasonably satisfactory to the Company, to be bound by the terms and provisions of this Agreement (which may be accomplished by an addendum or certificate of joinder to this Agreement). Any transfer or assignment made other than as provided in this Section 5.2 shall be null and void.
5.3    Lock-up. Each Holder agrees that it, he or she shall not Transfer any Registrable Securities until the expiration of the Founder Shares Lock-up Period or the Private Placement Lock-up Period, as applicable.
5.4    Counterparts.  This Agreement may be executed in multiple counterparts (including facsimile or PDF counterparts), each of which shall be deemed an original, and all of which together shall constitute the same instrument, but only one of which need be produced.
5.5    Governing Law; Venue.  NOTWITHSTANDING THE PLACE WHERE THIS AGREEMENT MAY BE EXECUTED BY ANY OF THE PARTIES HERETO, THE PARTIES EXPRESSLY AGREE THAT (I) THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED UNDER THE LAWS OF THE STATE OF NEW YORK AS APPLIED TO AGREEMENTS AMONG NEW YORK RESIDENTS ENTERED INTO AND TO BE PERFORMED ENTIRELY WITHIN NEW YORK, WITHOUT REGARD TO THE CONFLICT OF LAW PROVISIONS OF SUCH JURISDICTION AND (II) THE VENUE FOR ANY ACTION TAKEN WITH RESPECT TO THIS AGREEMENT SHALL BE ANY STATE OR FEDERAL COURT IN NEW YORK COUNTY IN THE STATE OF NEW YORK.
5.6    Amendments and Modifications.  Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities at the time in question, compliance with any of the provisions, covenants and conditions set forth in this Agreement may be waived, or any of such provisions, covenants or conditions may be amended or modified; provided, however, that notwithstanding the foregoing, any amendment hereto or waiver hereof that 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 course of dealing between any Holder or the Company and any other party hereto or any failure or delay on the part of a 
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Holder or the Company in exercising any rights or remedies under this Agreement shall operate as a waiver of any rights or remedies of any Holder or the Company. No single or partial exercise of any rights or remedies under this Agreement by a party shall operate as a waiver or preclude the exercise of any other rights or remedies hereunder or thereunder by such party.
5.7    Other Registration Rights.  The Company represents and warrants that no person, other than a Holder of Registrable Securities, has any right to require the Company to register any securities of the Company for sale or to include such securities of the Company in any Registration filed by the Company for the sale of securities for its own account or for the account of any other person. Further, the Company represents and warrants that this Agreement supersedes any other registration rights agreement or agreement with similar terms and conditions and in the event of a conflict between any such agreement or agreements and this Agreement, the terms of this Agreement shall prevail.
5.8    Term.  This Agreement shall terminate upon the earlier of (i)  the tenth anniversary of the date of this Agreement or (ii)  the date as of which (A) all of the Registrable Securities have been sold pursuant to a Registration Statement (but in no event prior to the applicable period referred to in Section 4(a)(3) of the Securities Act and Rule 174 thereunder (or any successor rule promulgated thereafter by the Commission)) or (B) the Holders of all Registrable Securities are permitted to sell the Registrable Securities without registration pursuant to Rule 144 (or any similar provision) under the Securities Act with no volume or other restrictions or limitations. The provisions of Section 3.5 and Article IV shall survive any termination.
5.9    MNPI Provisions. 
(a)    Each Holder acknowledges that (i) the provisions of Article II of this Agreement require certain communications to be made by the Company or other Holders to such Holder that may result in such Holder acquiring MNPI (which may include, solely by way of illustration, the fact that an offering of the Company’s securities is pending or the number of Company securities or the identity of the selling Holders) (such communications, “RRA Communications”), and (ii) subject to the time limitations and the qualifications set forth herein, there is no limitation on the duration of time that such Holder may be in possession of MNPI included in such RRA Communications and, except with respect to a notice provided pursuant to Article II, no requirement that the Company or other Holders make any public disclosure to cause information in such RRA Communications to cease to be MNPI; provided that the Company will notify each Holder if any proposed registration or offering for which an RRA Communications has been delivered pursuant to this Agreement has been terminated or aborted to the extent the knowledge of such registration or offering constitutes MNPI.

(b)    Each Holder agrees that it will maintain the confidentiality of MNPI in RRA Communications delivered to it and, to the extent such Holder is not a natural person, such confidential treatment shall be in accordance with procedures adopted by it in good faith to protect confidential information of third parties delivered to such Holder (“Policies”); provided that the obligation to maintain confidentiality of MNPI in RRA Communications shall cease when the information in the RRA Communications (i) is known or becomes known to the public in general (other than as a result of a breach of this Section by such Holder), or (ii) is or has been made known or disclosed to the Holder by a third party without a breach of any obligation of confidentiality such third party may have to the Company; provided further that a Holder may deliver or disclose MNPI in such RRA Communications to (1) to its affiliates, its and its 
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affiliates’ respective directors, officers, employees, partners, members, agents, attorneys, consultants and financial and other advisors, and potential sources of capital (including potential limited partners) (collectively, the “Representatives”), but solely to the extent such disclosure reasonably relates to its evaluation of exercise of its rights under this Agreement and the sale of any Registrable Securities in connection with the subject of the notice, (2) to any federal, state, national, foreign or other regulatory or self-regulatory authority having jurisdiction over such Holder, or (3) to any Person if necessary to effect compliance with any law, rule, regulation, investigation, audit, request or order applicable to such Holder, including in response to any subpoena or other legal process, audit or examinations; provided further, that in the case of clause (1), the recipients of such MNPI in such RRA Communications are subject to the Policies or agree to hold confidential the MNPI in a manner substantially consistent with the terms of this Section 6 and that in the case of clauses (2) and (3), such Holder promptly notifies the Company of such disclosure to the extent such Holder is legally permitted to give such notice and it is reasonably practicable; provided, further, no such notice shall be required where disclosure is made (x) in response to a general request by a regulatory or self-regulatory authority or (y) in connection with a routine audit or examination by a bank examiner or auditor and such audit or examination does not reference the Company or this Agreement.
(c)    Each Holder, by its execution of this Agreement, hereby (i) acknowledges that it is aware that the U.S. securities laws prohibit any Person who has MNPI about a company from purchasing or selling, directly or indirectly, securities of such company (including entering into hedge transactions involving such securities), or from communicating such information to any other Person, and (ii) agrees that it will not use or permit any third party to use, and that it will use its commercially reasonable efforts to assure that none of its Representatives will use or permit any third party to use, any MNPI the Company provides in contravention of the U.S. securities laws and such Holder will cease trading in the Company’s securities while in possession of such MNPI.
(d)    Each Holder shall have the right, at any time and from time to time (including after receiving information regarding any potential Underwritten Offering), to elect not to receive RRA Communications that the Company or any other Holders otherwise are required to deliver pursuant to this Agreement by delivering to the Company a written statement signed by such Holder that it does not want to receive any RRA Communications (an “Opt-Out Request”); in which case and notwithstanding anything to the contrary in this Agreement the Company and other Holders shall not be required to, and shall not, deliver any RRA Communications for which the Holder has indicated in the Opt-Out Request that it does not want to receive hereunder to the extent that such RRA Communications would result in a Holder acquiring MNPI.  An Opt-Out Request may state a date on which it expires or, if no such date is specified, shall remain in effect until the Holder notifies the Company that it withdraws the Opt-Out Request, and the Holder may, in its sole discretion, determine the scope and applicability of the Opt-Out Request as set forth in the Opt-Out Request.  A Holder who previously has given the Company an Opt-Out Request may update or revoke such request at any time, and there shall be no limit on the ability of a Holder to issue, update and revoke subsequent Opt-Out Requests; provided that each Holder shall use commercially reasonable efforts to minimize the administrative burden on the Company arising in connection with any such Opt-Out Requests.
[Signature Page Follows]

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IN WITNESS WHEREOF, the undersigned have caused this Agreement to be executed as of the date first written above.
						
	COMPANY:
EOS Energy Enterprises, Inc.,
a Delaware corporation

	By:	/s/ Sagar Kurada
		Name:    Sagar Kurada
		Title:    Chief Financial Officer

						
	HOLDERS:
B. Riley Principal Sponsor Co. II, LLC,
a Delaware limited liability company

	By:	/s/ Phillip Ahn
		Name:    Phillip Ahn
		Title:    Authorized Signatory

						
	Daniel Shribman
	By:	/s/ Daniel Shribman
		Name:    Daniel Shribman
		

Signature Page to A&R Registration Rights AgreementDocument

AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT
This Amended and Restated Registration Rights Agreement (this “Agreement”) is made as of May 10, 2021 by and among Eos Energy Enterprises, Inc., a Delaware corporation (the “Company”), each of the other persons listed on the signature pages hereto (each, a “Securityholder” and collectively, the “Securityholders”), and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 6.2 of this Agreement (together with the Securityholders and the RRA Parties (as defined below), each a “Holder” and, collectively, the “Holders”).
RECITALS
WHEREAS, the Registration Rights Agreeement dated as of November 16, 2020 was made and entered into in connection with the closing of the business combination (the “Business Combination”) by and among the Company and each of signatories thereto (the “RRA Parties”) contemplated by that certain Agreement and Plan of Merger, dated as of September 7, 2020 (the “Merger Agreement”), by and among BMRG Merger Sub, LLC, a Delaware limited liability company, BMRG Merger Sub II, LLC, a Delaware limited liability company, Eos Energy Storage LLC, a Delaware limited liability company, New Eos Energy LLC, a Delaware limited liability company, and AltEnergy Storage VI, LLC, a Delaware limited liability company (“AltEnergy Demanding Holder”), in its capacity as the Securityholder Representative thereunder;
WHEREAS, pursuant to the Merger Agreement, the Company issued to the Securityholders and other Holders shares of common stock of the Company, par value $0.0001 per share (the “Common Stock”), as consideration in the Business Combination;
WHEREAS, pursuant to the Merger Agreement, the Company agreed to register for resale under the Securities Act the shares of Common Stock issued to the Securityholders and other Holders; and
WHEREAS, the Company and the Holders desire to enter into this Agreement, pursuant to which the Company shall grant the Holders certain registration rights with respect to certain securities of the Company, and the parties hereto shall set forth their agreement with respect to certain other matters, as set forth in this Agreement.
AGREEMENT
NOW, THEREFORE, in consideration of the representations, covenants and agreements contained herein, and certain other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:
ARTICLE I
DEFINITIONS

Section 1.1    Definitions.  The terms defined in this Article I shall, for all purposes of this Agreement, have the respective meanings set forth below:

    

“Adverse Disclosure” shall mean any public disclosure of material non-public information, which disclosure, in the good faith judgment of the Chief Executive Officer or principal financial officer of the Company (if not Joe Mastrangelo), after consultation with counsel to the Company, (a) would be required to be made in any Registration Statement or Prospectus in order for the applicable Registration Statement or Prospectus not to contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements contained therein (in the case of any prospectus and any preliminary prospectus, in the light of the circumstances under which they were made) not misleading, (b) would not be required to be made at such time if the Registration Statement were not being filed, and (c) the Company has a bona fide business purpose for not making such information public.
“Affiliate” shall mean, with respect to any specified Holder, any person or entity who directly or indirectly, controls, is controlled by or is under common control with such Holder, including, without limitation, any general partner, managing member, officer, director or trustee of such Holder, or any investment fund or registered investment company now or hereafter existing which is controlled by one or more general partners, managing members or investment advisers of, or shares the same management company or investment adviser with, such Holder.
“Agreement” shall have the meaning given in the Preamble.
“AltEnergy Demanding Holder” shall have the meaning given in the Recitals.
“Blackout Period” shall have the meaning given in Section 3.4(b).
“Business Combination” shall have the meaning given in the Preamble.
“Business Day” shall mean any day of the year on which national banking institutions in New York are open to the public for conducting business and are not required or authorized to close.
“Closing Date” shall have the meaning given in the Merger Agreement.
“Common Stock” shall have the meaning given in the Preamble.
“Commission” shall mean the U.S. Securities and Exchange Commission.
“Company” shall have the meaning given in the Preamble.
“Demanding Holder” shall have the meaning given in Section 2.2(a).
“Effectiveness Deadline” shall have the meaning given in Section 2.1.
“Exchange Act” shall mean the Securities Exchange Act of 1934, as it may be amended from time to time.
“Form S-3” shall have the meaning given in Section 2.4.
“Founder Holders” shall mean “Holders” as defined in the Founder Registration Rights Agreement.
2
    

“Founder Registrable Securities” shall mean “Registrable Securities” as defined in the Founder Registration Rights Agreement
“Founder Registration Rights Agreement” shall mean that certain Registration Rights Agreement, dated as of May 19, 2020, by and between the Company, B. Riley Principal Sponsor Co. II, LLC, a Delaware limited liability company, and the other parties thereto.
“Holders” shall have the meaning given in the Preamble.
“Lock-Up Period” shall mean the period ending on the earlier of (A) one year after the Closing Date or (B) subsequent to the Closing Date, (x) if the last sale price of the Common Stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the Closing Date or (y) the date on which the Company completes a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property; provided, in the case of clause (B) (x), the Lock-up Period shall end no earlier than August 1, 2021.
“Maximum Number of Securities” shall have the meaning given in Section 2.2(b).
“Merger Agreement” shall have the meaning given in the Recitals.
“Misstatement” shall mean an untrue statement of a material fact or an omission to state a material fact required to be stated in a Registration Statement or Prospectus, or necessary to make the statements in a Registration Statement or Prospectus in the light of the circumstances under which they were made not misleading.
“MNPI” means material non-public information within the meaning of Regulation FD promulgated under the Exchange Act, which shall in any case include the receipt of any notice delivered by the Company under this Agreement, including pursuant to Article II hereof and the information contained in any such notice.
“Permitted Transferees” shall mean any person or entity to whom a Holder of Registrable Securities is permitted to transfer such Registrable Securities prior to the expiration of the Lock-up Period or any other lock-up period, as the case may be, under this Agreement and any other applicable agreement between such Holder and the Company, and to any transferee thereafter.
“Piggyback Registration” shall have the meaning given in Section 2.3.
“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) the shares of Common Stock issued by the Company to the Securityholders and any other Holders pursuant to the Merger Agreement and (b) any other equity security of the Company issued or issuable to any Holder with respect to any such shares of Common Stock by way of a stock dividend or stock split or in connection with a combination of shares, recapitalization, merger, consolidation or reorganization; provided, 
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however, that, as to any particular Registrable Security, such securities shall cease to be Registrable Securities when: (i) a Registration Statement with respect to the sale of such securities shall have become effective under the Securities Act and such securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (ii) such securities shall have been otherwise transferred, new certificates for such securities not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of such securities shall not require registration under the Securities Act; (iii) such securities shall have ceased to be outstanding; (iv) such securities may be sold without registration pursuant to Rule 144 promulgated under the Securities Act (or any successor rule promulgated thereafter by the Commission) (but with no volume or other restrictions or limitations); or (v) such securities have been sold to, or through, a broker, dealer or underwriter in a public distribution or other public securities transaction.
“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 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 securities exchange 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);
c.printing, messenger, telephone and delivery expenses;
d.reasonable fees and disbursements of counsel for the Company;
e.reasonable fees and disbursements of all independent registered public accountants of the Company incurred specifically in connection with such Registration (including the expenses of any special audit and “comfort letters” required by or incident to such performance); and
f.reasonable fees and expenses of one legal counsel selected by the Demanding Holders in connection with an Underwritten Offering.
“Registration Statement” shall mean any registration statement 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.
“Securities Act” shall mean the Securities Act of 1933, as amended from time to time.
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“Suspension Period” shall have the meaning given in Section 3.4(a).
“Transfer” shall mean the (a) sale of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase or otherwise dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent position or liquidation with respect to or decrease of a call equivalent position within the meaning of Section 16 of the Exchange Act, and the rules and regulations of the Commission promulgated thereunder with respect to, any security, (b) entry into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any security, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (c) public announcement of any intention to effect any transaction specified in clause (a) or (b).
“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 Offering” shall mean an offering in which securities of the Company are sold to an Underwriter in a firm commitment underwriting for distribution to the public.

ARTICLE II
REGISTRATIONS

Section 2.1    Registration Statement.  The Company shall, as soon as practicable after the Closing Date, but in any event within forty-five (45) days after the Closing Date, file a Registration Statement under the Securities Act to permit the public resale of all the Registrable Securities held by the Holders from time to time as permitted by Rule 415 under the Securities Act (or any successor or similar provision adopted by the Commission then in effect) on the terms and conditions specified in this Section 2.1 and shall use its commercially reasonable efforts to cause such Registration Statement to be declared effective as soon as practicable after the filing thereof, but in any event no later than the earlier of (a)  sixty (60) days (or ninety (90) days if the Commission notifies the Company that it will “review” the Registration Statement) after the Closing Date and (b) the tenth (10th) Business Day after the date the Company is notified (orally or in writing, whichever is earlier) by the Commission that such Registration Statement will not be “reviewed” or will not be subject to further review (such earlier date, the “Effectiveness Deadline”). The Registration Statement filed with the Commission pursuant to this Section 2.1 shall be on Form S-1 or such other form of registration statement as is then available to effect a registration for resale of such Registrable Securities, covering such Registrable Securities, and shall contain a Prospectus in such form as to permit any 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. A Registration Statement filed pursuant to this Section 2.1 shall provide for the resale pursuant to any method or combination of methods legally available to, and requested by, the Holders. The Company shall use its commercially reasonable efforts to cause a Registration Statement filed pursuant to this Section 2.1 to remain effective, and to be supplemented and amended to the extent necessary to ensure that such Registration Statement is available or, if not available, that another registration statement is available, for the resale of all the Registrable Securities held by the Holders until all such Registrable Securities have ceased to be Registrable Securities. As soon as practicable following the effective date of a Registration Statement filed pursuant to this Section 2.1, but in any event within three (3) Business Days of such date, the 
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Company shall notify the Holders of the effectiveness of such Registration Statement. When effective, a Registration Statement filed pursuant to this Section 2.1 (including any documents incorporated therein by reference) will comply as to form in all material respects with all applicable requirements of the Securities Act and the Exchange Act and will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading (in the case of any Prospectus contained in such Registration Statement, in the light of the circumstances under which such statement is made).
Section 2.2    Underwritten Offering.  
a.In the event that any Holder elects to dispose of Registrable Securities under a Registration Statement pursuant to an Underwritten Offering of all or part of such Registrable Securities that are registered by such Registration Statement, then the Company shall, upon the written demand of AltEnergy Demanding Holder or its designee (any such Holder, a “Demanding Holder”), enter into an underwriting agreement in a form as is customary in Underwritten Offerings of equity securities with the managing Underwriter or Underwriters selected by the Demanding Holder in consultation with the Company, and shall take all such other reasonable actions as are requested by the managing Underwriter or Underwriters in order to expedite or facilitate the disposition of such Registrable Securities. Such underwriting agreement shall be satisfactory in form and substance to the Company and the Demanding Holder. In addition, the Company shall give prompt written notice to each other Holder regarding such proposed Underwritten Offering, and such notice shall offer such Holders the opportunity to include in the Underwritten Offering such number of Registrable Securities as each such Holder may request. Each such Holder shall make such request in writing to the Company within five Business Days after the receipt of any such notice from the Company, which request shall specify the number of Registrable Securities intended to be disposed of by such Holder.
b.If the managing Underwriter or Underwriters in an Underwritten Offering, in good faith, advises the Company and the Demanding Holder that the dollar amount or number of Registrable Securities that the Demanding Holder desires to sell, taken together with all other shares of Common Stock or other equity securities that the Company or any other Holder desires to sell and the shares of Common Stock, if any, as to which a Registration has been requested pursuant to separate written contractual piggy-back registration rights held by any other stockholders who desire to sell, exceeds the maximum dollar amount or maximum number of equity securities that can be sold in the Underwritten Offering without adversely affecting the proposed offering price, the timing, the distribution method, or the probability of success of such offering (such maximum dollar amount or maximum number of such securities, as applicable, the “Maximum Number of Securities”), then the Company shall include in such Underwritten Offering, as follows:
i.first, pro rata to (A) Registrable Securities of the Holders (including the Demanding Holders) who have elected to participate in the Underwritten Offering pursuant to Section 2.2(a) and (B)  Founder Registrable Securities of Founder Holders exercising their rights to register their Founder Registrable Securities pursuant to the 
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Founder Registration Rights Agreement, which can be sold without exceeding the Maximum Number of Securities;
ii.second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (i), to shares of Common Stock held by persons or entities that the Company is obligated to register in a Registration pursuant to separate written contractual arrangements with such persons, which collectively can be sold without exceeding the Maximum Number of Securities; and
iii.third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (i) or clause (ii), shares of Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities.
c.A Demanding Holder shall have the right to withdraw all or any portion of its Registrable Securities included in an Underwritten Offering pursuant to this Section 2.2 for any or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters of its intention to withdraw from such Underwritten Offering prior to the pricing of such Underwritten Offering and such withdrawn amount shall no longer be considered an Underwritten Offering. Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred in connection with an Underwritten Offering prior to its withdrawal under this Section 2.2(c).
d.The Company shall not be obligated to effect any Underwritten Offering pursuant to this Section 2.2 (x) if the Demanding Holder, together with the holders of any other securities of the Company entitled to inclusion in such Underwritten Offering, propose to sell Registrable Securities and such other securities (if any), the aggregate proceeds of which are anticipated to be less than $15,000,000, or (y) in any particular jurisdiction in which the Company would be required to execute a general consent to service of process in effecting such registration, qualification, or compliance, unless the Company is already subject to service in such jurisdiction and except as may be required by the Securities Act.
Section 2.3    Piggyback Registration.  
a.If at any time the Company proposes to file a Registration Statement under the Securities Act with respect to an Underwritten 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 including, without limitation, pursuant to Section 2.2 hereof) on a form that would permit registration of Registrable Securities, 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 or (v) on Form S-4, then the Company shall give written notice of such proposed filing to all of the Holders of Registrable Securities as soon as practicable but not less than ten days before the anticipated filing date of such Registration Statement, which notice shall (A)  describe the 
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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 days after receipt of such written notice (in the case of an “overnight” or “bought” offering, such requests must be made by the Holders within three Business Days after the delivery of any such notice by the Company) (such Registration a “Piggyback Registration”); provided, however, that if the Company has been advised in writing by the managing Underwriter(s) that the inclusion of Registrable Securities for sale for the benefit of the Holders will have an adverse effect on the price, timing or distribution of the Common Stock in the Underwritten Offering, then (1) if no Registrable Securities can be included in the Underwritten Offering in the opinion of the managing Underwriter(s), the Company shall not be required to offer such opportunity to the Holders or (2) if any Registrable Securities can be included in the Underwritten Offering in the opinion of the managing Underwriter(s), then the amount of Registrable Securities to be offered for the accounts of Holders shall be determined based on the provisions of Section 2.3(b). Subject to Section 2.3(b), the Company shall, in good faith, cause such Registrable Securities to be included in such Piggyback Registration and shall use its commercially reasonable 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 Section 2.3 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. If no written request for inclusion from a Holder is received within the specified time, each such Holder shall have no further right to participate in such Underwritten Offering. All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this Section 2.3 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Company.
b.If the managing Underwriter or Underwriters in an Underwritten Offering 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 Sections 2.2 and 2.3, 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, shares of 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), pro 
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rata to (1) the Registrable Securities of Holders exercising their rights to register their Registrable Securities pursuant to Sections 2.2 and 2.3 hereof; and (2)  the Founder Registrable Securities of Founder Holders exercising their rights to register their Founder Registrable Securities pursuant to the Founder Registration Rights Agreement, 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), shares of 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;
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, shares of 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), pro rata to (1) the Registrable Securities of Holders exercising their rights to register their Registrable Securities pursuant to Sections 2.2 and 2.3 hereof; and (2)  the Founder Registrable Securities of Founder Holders exercising their rights to register their Founder Registrable Securities pursuant to the Founder Registration Rights Agreement, 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), shares of 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), shares of 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.
c.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 its intention to withdraw from such Piggyback Registration prior to the pricing of such Underwritten Offering. 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 Section 2.3.
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d.For purposes of clarity, any Registration effected pursuant to Section 2.3 hereof shall not be counted as a Registration effected under Section 2.2 hereof. In addition, no written notice of a Piggyback Registration expected to be consummated prior to the expiration of the applicable Lock-Up Period pursuant to Article V hereof shall be required to be delivered under this Section 2.3. 
Section 2.4    Registrations on Form S-3.  The Holders of Registrable Securities may at any time, and from time to time, request in writing that the Company, pursuant to Rule 415 under the Securities Act (or any successor rule promulgated thereafter by the Commission), register the resale of any or all of their Registrable Securities on Form S-3 or similar short form registration statement that may be available at such time (“Form S-3”); provided, however, that the Company shall not be obligated to effect such request through an Underwritten Offering. Within five days of the Company’s receipt of a written request from a Holder or Holders of Registrable Securities for a Registration on Form S-3, the Company shall promptly give written notice of the proposed Registration on Form S-3 to all other Holders of Registrable Securities, and each Holder of Registrable Securities who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in such Registration on Form S-3 shall so notify the Company, in writing, within ten days after the receipt by the Holder of the notice from the Company. As soon as practicable thereafter, but not more than 12 days after the Company’s initial receipt of such written request for a Registration on Form S-3, the Company shall register all or such portion of such Holder’s Registrable Securities as are specified in such written request, together with all or such portion of Registrable Securities of any other Holder or Holders joining in such request as are specified in the written notification given by such Holder or Holders; provided, however, that the Company shall not be obligated to effect any such Registration pursuant to Section 2.3 hereof if (i) a Form S-3 is not available for such offering, or (ii) the Holders of Registrable Securities, together with the Holders of any other equity securities of the Company entitled to inclusion in such Registration, propose to sell the Registrable Securities and such other equity securities (if any) at any aggregate price to the public of less than $10,000,000.

ARTICLE III
COMPANY PROCEDURES

Section 3.1    General Procedures.  The Company shall use its commercially reasonable efforts to effect the Registration of Registrable Securities in accordance with the intended plan of distribution thereof, and pursuant thereto the Company shall, as expeditiously as practicable:
a.subject to Section 2.1, prepare and file with the Commission a Registration Statement with respect to such Registrable Securities and use its commercially reasonable efforts to cause such Registration Statement to become effective and remain effective pursuant to the terms of this Agreement until all of such Registrable Securities have been disposed of;
b.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 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 of such Registrable Securities have been disposed of in accordance 
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with the intended plan of distribution set forth in such Registration Statement or supplement to the Prospectus;
c.prior to filing a Registration Statement or Prospectus, or any amendment or supplement thereto, furnish without charge to the Underwriters, if any, and the Holders of Registrable Securities included in such Registration, and to one legal counsel selected by the Holders, 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 selected by such Holders may request in order to facilitate the disposition of the Registrable Securities owned by such Holders;
d.prior to any public offering of Registrable Securities, use its commercially reasonable 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 or as a dealer in securities 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;
e.use its commercially reasonable efforts to 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;
f.provide a transfer agent and registrar for all such Registrable Securities no later than the effective date of such Registration Statement;
g.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 commercially reasonable efforts to prevent the issuance of any stop order or to obtain its withdrawal if such stop order should be issued;
h.at least five days prior to the filing of any Registration Statement or Prospectus or any amendment or supplement to such Registration Statement or Prospectus or any document that is to be incorporated by reference into such Registration Statement or Prospectus, furnish a copy thereof to each seller of such Registrable Securities or its counsel;
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i.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;
j.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;
k.obtain a “cold comfort” letter from the Company’s independent registered public accountants in the event of an Underwritten Offering, in customary form and covering such matters of the type customarily covered by “cold comfort” letters as the managing Underwriter may reasonably request;
l.on the date the Registrable Securities are delivered for sale pursuant to such Registration, obtain an opinion, dated as of such date, of counsel representing the Company for the purposes of such Registration, addressed to the placement agent or sales agent, if any, and the Underwriters, if any, covering such legal matters with respect to the Registration in respect of which such opinion is being given as are customarily included in such opinions and negative assurance letters;
m.in the event of any Underwritten Offering, enter into and perform its obligations under an underwriting agreement, on terms agreed to by the Company with the managing Underwriter of such offering;
n.make available to its security holders, as soon as reasonably practicable, an earnings statement (which need not be audited) 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);
o.if the Registration involves the Registration of Registrable Securities involving gross proceeds in excess of $30,000,000, 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 such Underwritten Offering; and
p.otherwise, in good faith, take such customary actions necessary to effect the registration of such Registrable Securities contemplated hereby.
Section 3.2    Registration Expenses.  The Registration Expenses of all Registrations shall be borne by the Company. It is acknowledged by the Holders and the Company that the Holders 
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shall bear all incremental selling expenses relating to the sale of Registrable Securities, such as Underwriters’ commissions and discounts, brokerage fees and, other than as set forth in the definition of “Registration Expenses,” all reasonable fees and expenses of any legal counsel representing the Holders.
Section 3.3    Requirements for Participation in Underwritten Offerings.  No person may participate in any Underwritten Offering for equity securities of the Company hereunder unless such person (a) agrees to sell such person’s securities on the basis provided in the underwriting agreement for such Underwritten Offering and (b) 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 agreement. Each Holder proposing to distribute its Registrable Securities through an Underwritten Offering for equity securities of the Company hereunder shall enter into an underwriting agreement with the underwriters, which underwriting agreement shall contain such representations, covenants, indemnities (subject to Article IV) and other rights and obligations as are customary in underwritten offerings of equity securities; provided, however, that no such Holder shall be required to make any representations or warranties to or agreements with the Company or the Underwriters other than representations, warranties or agreements regarding such Holder’s authority to enter into such underwriting agreement and to sell, and its ownership of, the securities being registered on its behalf, its intended method of distribution and any other representation required by law.
Section 3.4    Suspension of Sales; Adverse Disclosure.  
a.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 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 it is advised in writing by the Company that the use of the Prospectus may be resumed (any such period, a “Suspension Period”).
b.If the filing, initial effectiveness or continued use of a Registration Statement in respect of any Registration (including in connection with an Underwritten Offering) at any time would require the Company to make an Adverse Disclosure or would require the inclusion in such Registration Statement of financial statements that are unavailable to the Company for reasons beyond the Company’s control, then the Company may, upon giving prompt written notice to the Holders, delay the filing or initial effectiveness of, or suspend use of, such Registration Statement (including in connection with an Underwritten Offering) for the shortest period of time, but in no event more than 30 days, determined in good faith by the Company to be necessary for such purpose (any such period, a “Blackout Period”). In the event the Company exercises its rights under the preceding sentence, the Holders agree to suspend, immediately upon their receipt of the notice referred to above, their use of the Prospectus relating to any Registration in connection with any sale or offer to sell Registrable Securities.
c.The Company shall immediately notify the Holders of the expiration of any period during which it exercised its rights under this Section 3.4. Notwithstanding anything to the 
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contrary in this Section 3.4, in no event shall any Suspension Period or any Blackout Period continue for more than 30 days in the aggregate during any 365-day period.
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:
a.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 (the delivery of which will be satisfied by the Company’s filing of such reports on the Commission’s EDGAR system); and
b.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. 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.  
a.The Company agrees to indemnify, to the extent permitted by law, each Holder of Registrable Securities, its officers and directors and each person who controls (within the meaning of the Securities Act) such Holder (and the directors and officers thereof) against all losses, claims, damages, liabilities and expenses (including attorneys’ fees) caused by any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, 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. The Company shall indemnify the Underwriters, their officers and directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided in the foregoing with respect to the indemnification of the Holder.
b.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 
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(within the meaning of the Securities Act) against any losses, claims, damages, liabilities and expenses (including without limitation reasonable attorneys’ fees) resulting from any untrue statement of material fact contained in the Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement thereto or any omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, but only to the extent that such untrue statement or omission is contained in any information or affidavit so furnished in writing by 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. The Holders of Registrable Securities shall indemnify the Underwriters, their officers, directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided in the foregoing with respect to indemnification of the Company.
c.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 legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof (other than reasonable costs of investigation) or any settlement made by the indemnified party without its consent (but such consent shall not be unreasonably withheld); provided, however, that (x) if the indemnifying party fails to take reasonable steps necessary to defend diligently the action or proceeding within 20 days after receiving notice from such indemnified party, (y) if such indemnified party who is a defendant in any action or proceeding that is also brought against the indemnifying party reasonably shall have concluded that there may be one or more legal defenses available to such indemnified party that are not available to the indemnifying party or (z) if representation of both parties by the same counsel is otherwise inappropriate under applicable standards of professional conduct, then, in any such case, the indemnified party shall have the right to assume or continue its own defense and the indemnifying party shall be liable for any expenses therefor. 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, 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) or 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.
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d.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 Holder’s indemnification is unavailable for any reason.
e.If the indemnification provided under this Section 4.1 from the indemnifying party is unavailable or insufficient to hold harmless 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 untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact, 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 Section 4.1(e) 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 Section 4.1(a), Section 4.1(b) and Section 4.1(c) 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 Section 4.1(e) 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 Section 4.1(e). 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 Section 4.1(e) from any person who was not guilty of such fraudulent misrepresentation.

ARTICLE V
TRANSFER RESTRICTIONS

Section 5.1    Lock-Up.  Each Holder agrees that it, he or she shall not Transfer any Registrable Securities until the expiration of the Lock-Up Period.
Section 5.2    Permitted Transferees.  Notwithstanding the provisions set forth in Section 5.1, Transfers of the Registrable Securities that are held by the Holder or any of their Permitted Transferees (that have complied with this Section 5.2), are permitted to the following (each of which shall be considered a “Permitted Transferee”): (a) to the Company’s officers or directors, any affiliate or family member of any of the Company’s officers or directors, (b) in the case of an 
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entity, to such Holder’s Affiliates, members, stockholders, partners or other equity holders, (c) in the case of an individual, by gift to a member of such individual’s immediate family or to a trust, the beneficiary of which is a member of such individual’s immediate family, an affiliate of such individual or to a charitable organization; (d) in the case of an individual, by virtue of laws of descent and distribution upon death of such individual; (e) in the case of an individual, pursuant to a qualified domestic relations order; (f) by virtue of the laws of the State of Delaware; or (g) in the event of the Company’s liquidation, merger, capital stock exchange, reorganization or other similar transaction which results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property subsequent to the Closing Date; provided, however, that in the case of clauses (a) through (f), these Permitted Transferees must enter into a written agreement with the Company agreeing to be bound by the transfer restrictions herein.

ARTICLE VI
MISCELLANEOUS

Section 6.1    Notices.  All notices, demands, requests, instructions, claims, consents, waivers and other communications to be given or delivered under or by reason of the provisions of this Agreement shall be in writing and shall be deemed to have been given (a) when personally delivered (or, if delivery is refused, upon presentment), received by fax or email (with hard copy to follow) prior to 5:00 p.m. Eastern Time on a Business Day or delivery by reputable overnight express courier (charges prepaid) or (b) three (3) days following mailing by certified or registered mail, postage prepaid and return receipt requested. Unless another address is specified in writing, notices, demands and communications to a Holder or the Company shall be sent to the addresses indicated below:
Notices to any Holder:
At the address on file with the Company.

with a copy to (which shall not constitute notice):
Morrison Cohen LLP
909 Third Avenue, 27th Floor
New York, New York, 10022
Attention: David LaGalia, Esq.
Zachary Jacobs, Esq.
Fax: (212) 735-8708
Email: dlagalia@morrisoncohen.com
zjacobs@morrisoncohen.com

Eos Energy Storage LLC
3920 Park Ave
Edison, NJ 08820
Attention: Joe Mastrangelo
Email: jmastrangelo@eosenergystorage.com

with a copy to (which shall not constitute notice):
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White & Case LLP
1221 Avenue of the Americas
New York, New York 10020-1095
Attention: Joel Rubinstein
Luke Laumann
Fax: (212) 354-8113
Email: joel.rubinstein@whitecase.com
llaumann@whitecase.com

Section 6.2    Assignment; No Third Party Beneficiaries.  
a.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.
b.Prior to the expiration of the Lock-up Period, no Holder may assign or delegate such Holder’s rights, duties or obligations under this Agreement, in whole or in part, except in connection with a Transfer of Registrable Securities by such Holder to a Permitted Transferee; provided, in each case, that such Permitted Transferee agrees to become bound by the transfer restrictions set forth in this Agreement. Following the expiration of the Lock-up Period, the rights granted to a Holder by the Company hereunder may be transferred or assigned (but only with all related obligations) by a Holder only to (i) a Permitted Transferee of such Holder, or (ii) a transferee or assignee that is a transferee or assignee of not less than 50,000 Registrable Securities (as presently constituted and subject to subsequent adjustments for share splits, share dividends, reverse share splits and the like); provided, that (x) such transfer or assignment of Registrable Securities is effected in accordance with applicable securities laws (subject to reasonable verification by the Company), (y) the Company is, within a reasonable time after such transfer, furnished with written notice of the name and address of such transferee and the Registrable Securities with respect to which such rights are being transferred and (z) such transferee agrees in a written instrument delivered to the Company to be bound by and subject to the terms and conditions of this Agreement.
c.This Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties and its successors and the permitted assigns of the Holders, which shall include Permitted Transferees.
d.This Agreement shall not confer any rights or benefits on any persons that are not parties hereto, other than as expressly set forth in this Agreement and this Section 6.2, except that the Founder Holders, severally and not jointly, shall be express third party beneficiaries of Section 2.2(b)(i) and Section 2.3(b).
e.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 (i) written notice of such assignment as provided in Section 6.1 and (ii) the written agreement of the assignee, in the form attached hereto as Exhibit A, to be bound by the terms and provisions of this Agreement. Any transfer or assignment made other than as provided in this Section 6.2 shall be null and void.
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f.A Unitholder (as defined in the Merger Agreement) may be admitted as a Holder herein after the execution of this Agreement upon the receipt by the Company of a duly completed and executed written agreement to be bound by the terms and provisions of this Agreement in form and substance satisfactory to the Company.
Section 6.3    Counterparts.  This Agreement and agreements, certificates, instruments and documents entered into in connection herewith may be executed and delivered in one or more counterparts and by fax or email, each of which shall be deemed an original and all of which shall be considered one and the same agreement. No party hereto shall raise the use of a fax machine or email to deliver a signature or the fact that any signature or agreement or instrument was transmitted or communicated through the use of a fax machine or email as a defense to the formation or enforceability of a contract and each party hereto forever waives any such defense.
Section 6.4    Governing Law.  This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New York, without regard to the principles of conflicts of laws thereof. Each party irrevocably submits to the exclusive jurisdiction of any New York State or United States Federal court sitting in The City of New York, Borough of Manhattan, over any suit, action or proceeding arising out of or relating to this Agreement. Each party irrevocably waives, to the fullest extent permitted by law, any objection that it may now or hereafter have to the laying of venue of any such suit, action or proceeding brought in such a court and any claim that any such suit, action or proceeding brought in such a court has been brought in an inconvenient forum. Any such process or summons to be served upon any party may be served by transmitting a copy thereof by registered or certified mail, return receipt requested, postage prepaid, addressed to it at the address set forth in Section 6.1. Such mailing shall be deemed personal service and shall be legal and binding upon any party in any action, proceeding or claim. Each party waives, to the fullest extent permitted by law, any other requirements of or objections to personal jurisdiction with respect thereto. Each party agrees that the other party shall be entitled to recover all of its reasonable attorneys’ fees and expenses relating to any action or proceeding and/or incurred in connection with the preparation therefor if any of them is the prevailing party in such action or proceeding. EACH PARTY HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.
Section 6.5    Specific Performance.  Each party hereto recognizes and affirms that in the event any of the provisions of this Agreement are not performed in accordance with their specific terms or otherwise are breached, money damages would be inadequate (and therefore the non-breaching party would have no adequate remedy at law) and the non-breaching party would be irreparably damaged. Accordingly, each party hereto agrees that each other party hereof shall be entitled to specific performance, an injunction or other equitable relief (without posting of bond or other security or needing to prove irreparable harm) to prevent breaches of the provisions of this Agreement and to enforce specifically this Agreement and the terms and provisions hereof in any proceeding, in addition to any other remedy to which such person may be entitled.
Section 6.6    Severability.  Whenever possible, each provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable law, but if any provision of this Agreement or the application of any such provision to any person or circumstance shall be held to be prohibited by or invalid, illegal or unenforceable under applicable law in any respect 
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by a court of competent jurisdiction, such provision shall be ineffective only to the extent of such prohibition or invalidity, illegality or unenforceability, without invalidating the remainder of such provision or the remaining provisions of this Agreement. Furthermore, in lieu of such illegal, invalid or unenforceable provision, there shall be added automatically as a part of this Agreement a legal, valid and enforceable provision as similar in terms to such illegal, invalid, or unenforceable provision as may be possible.
Section 6.7    Interpretation.  The headings and captions used in this Agreement have been inserted for convenience of reference only and do not modify, define or limit any of the terms or provisions hereof.
Section 6.8    Entire Agreement.  This Agreement contains the entire agreement and understanding between the parties hereto with respect to the subject matter hereof and supersedes all prior agreements and understandings, whether written or oral, relating to such subject matter in any way.
Section 6.9    Amendments and Modifications.  Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities at the time in question, compliance with any of the provisions, covenants and conditions set forth in this Agreement may be waived, or any of such provisions, covenants or conditions may be amended or modified; provided, however, that notwithstanding the foregoing, any amendment hereto or waiver hereof that adversely affects one Holder, solely in its capacity as a holder of the shares of equity interests 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 course of dealing between any Holder or the Company and any other party hereto or any failure or delay on the part of a Holder or the Company in exercising any rights or remedies under this Agreement shall operate as a waiver of any rights or remedies of any Holder or the Company. No single or partial exercise of any rights or remedies under this Agreement by a party shall operate as a waiver or preclude the exercise of any other rights or remedies hereunder or thereunder by such party.
Section 6.10    Term.  This Agreement shall terminate upon the date as of which no Holders (or permitted assignees under Section 6.2) hold any Registrable Securities. The provisions of Section 3.5 and Article IV shall survive any termination.
Section 6.11    Further Assurances.  In connection with this Agreement and the transactions contemplated hereby, upon the written request by the Company, each Holder shall execute and deliver any additional documents and instruments and perform any additional acts that may be reasonably necessary to effectuate and perform the provisions of this Agreement and the transactions contemplated hereby.
Section 6.12    MNPI Provisions.
a. Each Holder acknowledges that (i) the provisions of Article II of this Agreement require certain communications to be made by the Company or other Holders to such Holder that may result in such Holder acquiring MNPI (which may include, solely by way of illustration, the fact that an offering of the Company’s securities is pending or the number of Company securities or the identity of the selling Holders) (such communications, “RRA Communications”), and (ii) subject to the time limitations and the qualifications set forth herein, there is no limitation on the duration of time that such Holder may be in possession of MNPI included in such RRA 
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Communications and, except with respect to a notice provided pursuant to Article II, no requirement that the Company or other Holders make any public disclosure to cause information in such RRA Communications to cease to be MNPI; provided that the Company will notify each Holder if any proposed registration or offering for which an RRA Communications has been delivered pursuant to this Agreement has been terminated or aborted to the extent the knowledge of such registration or offering constitutes MNPI.

b.Each Holder agrees that it will maintain the confidentiality of MNPI in RRA Communications delivered to it and, to the extent such Holder is not a natural person, such confidential treatment shall be in accordance with procedures adopted by it in good faith to protect confidential information of third parties delivered to such Holder (“Policies”); provided that the obligation to maintain confidentiality of MNPI in RRA Communications shall cease when the information in the RRA Communications (i) is known or becomes known to the public in general (other than as a result of a breach of this Section by such Holder), or (ii) is or has been made known or disclosed to the Holder by a third party without a breach of any obligation of confidentiality such third party may have to the Company; provided further that a Holder may deliver or disclose MNPI in such RRA Communications to (1) to its affiliates, its and its affiliates’ respective directors, officers, employees, partners, members, agents, attorneys, consultants and financial and other advisors, and potential sources of capital (including potential limited partners) (collectively, the “Representatives”), but solely to the extent such disclosure reasonably relates to its evaluation of exercise of its rights under this Agreement and the sale of any Registrable Securities in connection with the subject of the notice, (2) to any federal, state, national, foreign or other regulatory or self-regulatory authority having jurisdiction over such Holder, or (3) to any Person if necessary to effect compliance with any law, rule, regulation, investigation, audit, request or order applicable to such Holder, including in response to any subpoena or other legal process, audit or examinations; provided further, that in the case of clause (1), the recipients of such MNPI in such RRA Communications are subject to the Policies or agree to hold confidential the MNPI in a manner substantially consistent with the terms of this Section 6 and that in the case of clauses (2) and (3), such Holder promptly notifies the Company of such disclosure to the extent such Holder is legally permitted to give such notice and it is reasonably practicable; provided, further, no such notice shall be required where disclosure is made (x) in response to a general request by a regulatory or self-regulatory authority or (y) in connection with a routine audit or examination by a bank examiner or auditor and such audit or examination does not reference the Company or this Agreement.
c.Each Holder, by its execution of this Agreement, hereby (i) acknowledges that it is aware that the U.S. securities laws prohibit any Person who has MNPI about a company from purchasing or selling, directly or indirectly, securities of such company (including entering into hedge transactions involving such securities), or from communicating such information to any other Person, and (ii) agrees that it will not use or permit any third party to use, and that it will use its commercially reasonable efforts to assure that none of its Representatives will use or permit any third party to use, any MNPI the Company provides in contravention of the U.S. securities laws and such Holder will cease trading in the Company’s securities while in possession of such MNPI.
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d.Each Holder shall have the right, at any time and from time to time (including after receiving information regarding any potential Underwritten Offering), to elect not to receive RRA Communications that the Company or any other Holders otherwise are required to deliver pursuant to this Agreement by delivering to the Company a written statement signed by such Holder that it does not want to receive any RRA Communications (an “Opt-Out Request”); in which case and notwithstanding anything to the contrary in this Agreement the Company and other Holders shall not be required to, and shall not, deliver any RRA Communications for which the Holder has indicated in the Opt-Out Request that it does not want to receive hereunder to the extent that such RRA Communications would result in a Holder acquiring MNPI.  An Opt-Out Request may state a date on which it expires or, if no such date is specified, shall remain in effect until the Holder notifies the Company that it withdraws the Opt-Out Request, and the Holder may, in its sole discretion, determine the scope and applicability of the Opt-Out Request as set forth in the Opt-Out Request.  A Holder who previously has given the Company an Opt-Out Request may update or revoke such request at any time, and there shall be no limit on the ability of a Holder to issue, update and revoke subsequent Opt-Out Requests; provided that each Holder shall use commercially reasonable efforts to minimize the administrative burden on the Company arising in connection with any such Opt-Out Requests.
* * * * *

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IN WITNESS WHEREOF, each of the undersigned has caused this Agreement to be executed as of the date first written above.
						
	Company:
EOS ENERGY ENTERPRISES, INC.

	By:	/s/ Sagar Kurada
		Name:    Sagar Kurada
		Title:    Chief Financial Officer

Signature Page to A&R Registration Rights Agreement

						
	John B. Berding Irrevocable Childrens Trust

	By:	/s/ Susan M. Berding
		Name:    Susan M. Berding
		Title:    Trustee

Signature Page to A&R Registration Rights Agreement

						
	Denman Street LLC

	By:	/s/ John B. Berding
		Name:    John B. Berding
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	Great American Life Insurance Company

	By:	/s/ Mark F. Muething
		Name:    Mark F. Muething
		Title:    President

Signature Page to A&R Registration Rights Agreement

						
	Great American Insurance Company

	By:	/s/ Stephen C. Beraha
		Name:    Stephen C. Beraha
		Title:    Assistant Vice President

Signature Page to A&R Registration Rights Agreement

						
	John Bernard Berding

	By:	/s/ John Bernard. Berding
		Name:    John Bernard. Berding
		Title:    

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Storage LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Storage II LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Storage V LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Storage VI LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Storage Bridge LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Transmission LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy Storage Bridge Phase II LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	AltEnergy LLC

	By:	/s/ Russell Stidolph
		Name:    Russell Stidolph
		Title:    Manager

Signature Page to A&R Registration Rights Agreement

						
	Whipstick Ventures LLC

	By:	/s/ Jeffrey S Bornstein
		Name:    Jeffrey S Bornstein
		Title:    Principal

Signature Page to A&R Registration Rights Agreement

						
	Glenn Oztemel

	By:	/s/ Glenn Oztemel
		Name:    Glenn Oztemel
		Title:    

Signature Page to A&R Registration Rights Agreement

						
	Graham Sharp

	By:	/s/ Graham Sharp
		Name:    Graham Sharp
		Title:    Director of Puma Energy

Signature Page to A&R Registration Rights Agreement

						
	John Desmarais

	By:	/s/ John Desmarais
		Name:    John Desmarais
		Title:    

Signature Page to A&R Registration Rights Agreement

						
	John T. Raymond

	By:	/s/ John Raymond
		Name:     John Raymond
		Title:    

Signature Page to A&R Registration Rights Agreement

						
	John T. Raymond 2012 Trust

	By:	/s/ John Raymond
		Name:     John Raymond
		Title:    

Signature Page to A&R Registration Rights Agreement

						
	Michael Gamson

	By:	/s/ Michael Gamson
		Name:     Michael Gamson
		Title:     Individual investor

Signature Page to A&R Registration Rights Agreement

						
	Reservoir Resource Partners, L.P.

	By:	/s/ Craig Huff
		Name:     Craig Huff
		Title:     Co-CEO

Signature Page to A&R Registration Rights Agreement

						
	Reservoir Capital Partners, L.P.

	By:	/s/ Craig Huff
		Name:     Craig Huff
		Title:     Co-CEO

Signature Page to A&R Registration Rights Agreement

						
	Reservoir Capital Investment Partners, L.P.

	By:	/s/ Craig Huff
		Name:     Craig Huff
		Title:     Co-CEO

Signature Page to A&R Registration Rights Agreement

						
	Reservoir Capital Master Fund II, L.P

	By:	/s/ Craig Huff
		Name:     Craig Huff
		Title:     Co-CEO

Signature Page to A&R Registration Rights Agreement

Exhibit A
JOINDER

JOINDER

The undersigned is executing and delivering this Joinder pursuant to the Registration Rights Agreement, dated as of November 16, 2020 (as the same may hereafter be amended, the “Registration Rights Agreement”), among Eos Energy Enterprises, Inc., a Delaware corporation (the “Company”), and the other person named as parties therein.

By executing and delivering this Joinder to the Company, the undersigned hereby agrees to become a party to, to be bound by, and to comply with the provisions of the Registration Rights Agreement as a Holder in the same manner as if the undersigned were an original signatory to the Registration Rights Agreement, and the undersigned’s ________________ number of shares of _____________________ shall be included as Registrable Securities under the Registration Rights Agreement.

Accordingly, the undersigned has executed and delivered this Joinder as of the ___ day of ____________, ____.

[•]
——————————————
         Signature of Stockholder
[Print Name of Stockholder]

Address:

Agreed and Accepted as of:

Eos Energy Enterprises, Inc.

By:    _____________________ 
    Its:    

Exhibit A to Registration Rights Agreement

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