Exhibit 10.2


 


SUPPLEMENTAL AGREEMENT


 


This Supplemental Agreement
(the “Agreement”), dated as of June 13, 2022, is entered into by and between YA II PN, LTD., a Cayman Islands exempt
limited partnership (the “Investor”) and EOS ENERGY ENTERPRISES, INC., a corporation organized and existing under the
laws of the State of Delaware (the “Company”).


 


BACKGROUND


 


		(A)	On April 28, 2022, the parties entered into a standby equity purchase agreement (the “Original SEPA”),
as amended by Amendment No. 1 thereto on June 13, 2022 (the “Amendment” and together with the Original SEPA, the “SEPA”),
pursuant to which the Company shall have the right to issue and sell to the Investor, from time to time as provided therein, and the Investor
shall purchase from the Company, up to $200 million of the Company’s shares of common stock, par value $0.0001 per share (the “Common
Shares”).



 


		(B)	Pursuant to Section 2.05 of the SEPA, subject to the mutual consent of the parties, from time to time
the Company may request, and the Investor shall provide, pre-advance loans (each, a “Pre-Advance Loan”) in the principal
amount not to exceed $50 million, pursuant to a promissory note on terms and conditions to be agreed by the parties.



 


		(C)	The parties have agreed that the Investor shall provide a Pre-Advance Loan in the principal amount of
$7,500,000, on the terms and conditions set forth in this Agreement pursuant to the issuance and sale by the Company of a convertible
promissory note (the “Promissory Note”) in the form attached hereto as Exhibit A to the Investor.



 


NOW, THEREFORE, in consideration
of the premises and the mutual covenants contained herein and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the Company and the Investor hereby agree as follows:


 


1. Definitions
and Interpretation


 


1.1 Capitalized
terms not otherwise defined herein shall have the meanings set forth in the SEPA, as applicable.


 


2. Pre-Advance
Loan Closing


 


2.1  First
Pre-Advance Loan. Subject to the satisfaction (or waiver) of the conditions
precedent to the Pre-Advance Loan set forth in Section 5 below, the Company shall issue and sell to the Investor, and the Investor
shall purchase from the Company, the Promissory Note with a principal amount of $7,500,000 (the “Principal Amount”)
for a purchase price equal to $7,350,000 (the “Purchase Price”).


 


2.2 Closing.
The closing of the issuance and sale of the Promissory Note (the “Closing”) shall occur at the offices Yorkville Advisors
Global, LP, 1012 Springfield Avenue, Mountainside, NJ 07092. The Closing shall take place on the date hereof, subject to the satisfaction
or waiver of the conditions to the Closing set forth in Section 4 below (or such other date as is mutually agreed to by the Company and
the Investor) (the “Closing Date”).


 






     


     


    

 


2.3  Form
of Payment. Subject to the satisfaction of the terms and conditions of the this Agreement, on the Closing Date (i) the Investor shall
deliver to the Company the Purchase Price of the Promissory Note to be issued and sold to the Investor on the Closing in
immediately available funds to an account designated by the Company in writing and transmit notification to the Company that such funds
transfer has been requested, and (ii) the Company shall deliver to the Investor, the Promissory Note duly executed on behalf of
the Company in the Principal Amount.


 


3. Supplemental
Agreements to the SEPA.


 


3.1 Investor
Advance Notices. At any time during the Commitment Period, provided that there is an outstanding balance owed under the Promissory
Note, the Investor may, by providing written notice to the Company in the form set forth herein as Exhibit B (an “Investor
Notice”), require the Company to deliver an Advance Notice to the Investor in accordance with the following provisions:


 


(a) The
Investor shall, in each Investor Notice, select the amount of the Advance, in its sole discretion, and the timing of delivery; provided
that the amount of the Advance shall not exceed (i) the outstanding balance owed under the Promissory Note on the date of delivery of
the Investor Notice, (ii) the Exchange Cap; provided that the Exchange Cap will not apply (a) if the Company’s stockholders
have approved issuances in excess of the Exchange Cap in accordance with the rules of the Principal Market or (b) as to any Advance, if
the Purchase Price of Shares in respect of such Advance equals or exceeds $2.15 per share (which represents the lower of (x) Nasdaq Official
Closing Price on the Trading Day immediately preceding the date of the SEPA; or (y) the average Nasdaq Official Closing Price for the
five Trading Days immediately preceding the date of the SEPA) or (iii) the amount that would cause the aggregate number of Common Shares
beneficially owned (as calculated pursuant to Section 13(d) of the Exchange Act) by the Investor and its Affiliates as a result of previous
issuances and sales of Common Shares to Investor under this Agreement and the SEPA to exceed 9.99% of the then outstanding Common Shares
(the “Ownership Limitation”). In connection with each Investor Notice delivered by the Investor, any portion of the
Advance that would (i) cause the Investor to exceed the Exchange Cap, the Ownership Limitation or (ii) cause the aggregate number of Shares
issued and sold to the Investor hereunder to exceed the Commitment Amount shall automatically be withdrawn with no further action required
by the Company, and such Investor Notice shall be deemed automatically modified to reduce the amount of the Advance requested by an amount
equal to such withdrawn portion; provided that in the event of any such automatic withdrawal and automatic modification, the Investor
will promptly notify the Company of such event.


 


(b) The
Purchase Price of the Shares in respect of any Advance Notice delivered pursuant to an Investor Notice shall be equal to the Conversion
Price (as defined in the Promissory Note) in effect on the date of delivery of the Investor Notice.


 






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(c)  Investors
Notices shall be delivered in accordance with the instructions set forth at the bottom of Exhibit B. An Investor Notice shall be
deemed delivered on (i) the day it is received by the Company if such notice is received by email on or before 8:30 a.m. Eastern Time,
or (ii) the immediately succeeding day if it is received by email after 8:30 a.m. Eastern Time.


 


(d) Upon
the deemed delivery of an Investor Notice in accordance with Section 3.1(c) above, a corresponding Advance Notice shall simultaneously
be deemed to have been delivered by the Company to the Investor, and any conditions precedent to such Advance Notice under the terms of
the SEPA that have not been satisfied shall be deemed to have been waived by the Investor.


 


(e) Notwithstanding
anything to the contrary in this Agreement, if on any day that an Investor Notice is delivered (i) the Company notifies the Investor that
a Material Outside Event has occurred, or (ii) the Company notifies the Investor of a Black Out Period, the parties agree that such Investor
Notice shall be automatically withdrawn.


 


3.2 Closings
of an Advance Notice delivered pursuant to an Investor Notice.


 


(a) In
respect of an Advance Notice deemed to be delivered pursuant to Section 3.1 above, the Advance Date shall be the date that the Advance
Notice is deemed to be delivered.


 


(b) In
respect of an Advance Notice deemed to be delivered pursuant to Section 3.1 above, the Investor shall pay the aggregate purchase price
of the Shares (as set forth in the Settlement Document) by offsetting the amount of the aggregate purchase price of the Shares to be paid
by the Investor against an equal amount outstanding under the Promissory Note (first towards accrued and unpaid interest, and then towards
outstanding principal, with no deduction for any Payment Premium, as defined in the Promissory Note).


 


(c) The
closing of each Advance Notice deemed to be delivered pursuant to Section 3.1 above and issuance of Shares related to such Advance Notice
(each, an “Advance Notice Closing”) shall take place as soon as practicable on or after each Advance Date in accordance
with the procedures set forth below. In connection with each Advance Notice Closing, the Company and the Investor shall fulfill each of
its obligations as set forth below:


 


(i) On each Advance
Date, the Investor shall deliver to the Company a written document, in the form attached hereto as Exhibit C (each a “Settlement
Document”), setting forth the final number of Shares to be purchased by the Investor, the Conversion Price, the aggregate amount
of accrued and unpaid interest due on the Promissory Note as of the Advance Date that shall be offset by the issuance of Shares, the aggregate
principal amount of the Promissory Note as of the Advance Date that shall be offset by the issuance of Shares and the total principal
amount of the Promissory Note that shall be outstanding following the Closing of the Advance.


 






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(ii) Promptly after
receipt of the Settlement Document with respect to each Advance (and, in any event, not later than one Trading Day after such receipt),
the Company will, or will cause its transfer agent to, electronically transfer such number of Shares to be purchased by the Investor (as
set forth in the Settlement Document) by crediting the Investor’s account or its designee’s account at the Depository Trust
Company through its Deposit Withdrawal at Custodian System or by such other means of delivery as may be mutually agreed upon by the parties
hereto, and transmit notification to the Investor that such share transfer has been requested. No fractional shares shall be issued, and
any fractional amounts shall be rounded to the next higher whole number of shares. To facilitate the transfer of the Common Shares by
the Investor, the Common Shares will not bear any restrictive legends so long as there is an effective Registration Statement covering
such Common Shares (it being understood and agreed by the Investor that notwithstanding the lack of restrictive legends, the Investor
may only sell such Common Shares in compliance with the requirements of the Securities Act (including any applicable prospectus delivery
requirements) or pursuant to an available exemption).


 


(iii) On or prior
to the Advance Date, each of the Company and the Investor shall deliver to the other all documents, instruments and writings expressly
required to be delivered by either of them pursuant to this Agreement or the SEPA in order to implement and effect the transactions contemplated
herein.


 


4.  Representations,
Warranties and Covenants. 


 


4.1 Representations
and Warranties of the Company.


 


(a) For
the purposes hereof, the Company represents and warrants to the Investor that,
as of the date hereof and the Closing Date all of the representations and warranties in the SEPA are true and correct in all material
respects (other than representations and warranties which address matters only as of a certain date, which shall be true and correct as
written as of such certain date) and shall apply in respect of the issuance and sale of the Promissory Note and the transactions contemplated
by this Agreement. 


 


(b) The
Company represents and warrants that it does not require shareholder approval prior to the issuance of the Promissory Note or any shares
issuable upon conversion of the Promissory Note by the holder thereof in accordance with the terms and conditions of the Promissory Note.


 


(c)  Share
Reserve. The maximum number of Common Shares issuable upon conversion of the Promissory Note (the “Underlying Shares”)
have been duly authorized and reserved.


 


4.2 Representations
and Warranties of the Investor. (a) For the purposes hereof, the Investor
represents and warrants to the Company that, as of the date hereof and the Closing Date all of the representations and warranties in the
SEPA are true and correct (other than representations and warranties which address matters only as of a certain date, which shall be true
and correct as written as of such certain date) and shall apply in respect of the issuance and sale of the Promissory Note and the transactions
contemplated by this Agreement. 


 






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(b)  Investor
understands that none of the Promissory Note or the Common Shares underlying the Promissory Note have been registered under the Securities
Act. Investor also understands that the Promissory Note is being offered and sold pursuant to an exemption from registration contained
in the Securities Act based in part upon Investor’s representations contained in the Agreement. Investor hereby represents and warrants
as follows:


 


(i)
Investor Bears Economic Risk. Investor has substantial experience in evaluating and investing in private placement transactions
of securities in companies similar to the Company so that it is capable of evaluating the merits and risks of its investment in the Company
and has the capacity to protect its own interests. Investor must bear the economic risk of this investment indefinitely unless the Promissory
Note (or the Underlying Shares) is registered pursuant to the Securities Act, or an exemption from registration is available. Investor
also understands that there is no assurance that any exemption from registration under the Securities Act will be available and that,
even if available, such exemption may not allow Investor to transfer all or any portion of the Promissory Note or the Underlying Shares
under the circumstances, in the amounts or at the times Investor might propose.


 


(ii) Acquisition for Own Account.
Investor is acquiring the Promissory Note for Investor’s own account for investment only, and not with a view towards their distribution.


 


(iii) Purchaser Can Protect
Its Interest. Investor represents that by reason of its, or of its management’s, business or financial experience, Investor
has the capacity to protect its own interests in connection with the transactions contemplated in this Agreement. Further, Investor is
aware of no publication of any advertisement in connection with the transactions contemplated in the Agreement.


 


(iv) Accredited Investor.
Investor represents that it is an accredited investor within the meaning of Regulation D under the Securities Act.


 


(v) Company Information.
Investor has had an opportunity to discuss the Company’s business, management and financial affairs with directors, officers and
management of the Company and has had the opportunity to review the Company’s operations and facilities. Purchaser has also had
the opportunity to ask questions of and receive answers from, the Company and its management regarding the terms and conditions of this
investment.


 


(vi) Rule 144. Investor
acknowledges and agrees that the Promissory Note, and, if issued, the Underlying Shares, issued to Investor, are “restricted securities”
as defined in Rule 144 promulgated under the Securities Act as in effect from time to time and must be held indefinitely unless they are
subsequently registered under the Securities Act or an exemption from such registration is available. Investor has been advised or is
aware of the provisions of Rule 144, which permits limited resale of securities purchased in a private placement subject to the satisfaction
of certain conditions, including, among other things, the availability of certain current public information about the Company, the resale
occurring following the required holding period under Rule 144 and the number of securities being sold during any three-month period not
exceeding specified limitations.


 






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(vii) Foreign Investor.
Investor hereby represents that it has satisfied itself as to the full observance of the laws of its jurisdiction in connection with any
invitation to subscribe for the Promissory Note or any use of this Agreement, including (i) the legal requirements within its jurisdiction
for the purchase of the Promissory Note, (ii) any foreign exchange restrictions applicable to such purchase, (iii) any government or other
consents that may need to be obtained, and (iv) the income tax and other tax consequences, if any, that may be relevant to the purchase,
holding, redemption, sale or transfer of the Promissory Note. Investor’s subscription and payment for and continued beneficial ownership
of the Promissory Note will not violate any applicable securities or other laws of Investor’s jurisdiction.


 


(viii) Transfer Restrictions.
Investor acknowledges and agrees that the Promissory Note and, if issued, the Underlying Shares are subject to restrictions on transfer
as set forth in the Promissory Note.


 


4.3 Opinion
of Counsel. Prior to the Closing Date, the Company shall cause to be delivered to the Investor an opinion letter from counsel to the
Company in form and substance reasonably satisfactory to the Investor.


 


4.4 Use
of Proceeds. The Company will use the proceeds from the sale of the Promissory
Note hereunder for working capital and other general corporate purposes or, if different, in a manner consistent with the application
thereof described in the Registration Statement. Neither the Company nor any subsidiary will, directly or indirectly, use the proceeds
of the transactions contemplated herein, or lend, contribute, facilitate or otherwise make available such proceeds to any Person
(i) to fund, either directly or indirectly, any activities or business of or with any Person that is identified on the list of Specially
Designated Nationals and Blocker Persons maintained by OFAC, or in any country or territory, that, at the time of such funding, is, or
whose government is, the subject of Sanctions Programs, or (ii) in any other manner that will result in a violation of Sanctions Programs.


 


4.5 Form
of Promissory Note. The parties agree that for the purposes of this
first Pre-Advance Loan, all references to a “Promissory Note” or “promissory note” in the SEPA shall be deemed
to be to the Promissory Note.


 


4.6 Integration.
The Company shall not issue any securities or enter into any transaction which would be integrated with the issuance of the Promissory
Note pursuant to this Agreement or the issuance of additional Common Shares pursuant to this Agreement or the SEPA for the purposes
of the shareholder approval requirements of the Nasdaq.


 






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4.7 Use
of SEPA. At any time during the Commitment Period, provided that there is an outstanding balance owed under the Promissory
Note, if the Company delivers an Advance Notice to the Investor, the Investor shall offset the amount due to be paid to the Company
under such Advance Notice against an equal amount outstanding under the Promissory
Note (first towards accrued and unpaid interest, and then towards outstanding principal, with no deduction for any Payment Premium,
as defined in the Promissory Note).


 


5. Conditions
Precedent to the Promissory Note. The obligations of the Investor to purchase the Promissory
Note shall be subject to the timely performance by the Company of their obligations hereunder, and the satisfaction, unless waived
by the Investor, as of the Closing Date, of each of the following conditions:


 


5.1 Accuracy
of Company’s Representation and Warranties. The representations and warranties of the Company set forth in Section 4.1 shall
be true and correct in all material respects.


 


5.2 Registration
of the Common Shares with the SEC. There is an effective Registration Statement pursuant to which the Investor is permitted to utilize
the prospectus thereunder to resell Common Shares issuable pursuant to Advance Notices under the SEPA.


 


5.4 Authority.
The issuance of the Promissory Note and the performance by the Company
of its obligations thereunder, including, without limitation, the issuance of the Underlying Shares upon conversion thereof, is legally
permitted by all laws and regulations to which the Company is subject and is not in conflict with, or prohibited by, the organizational
documents of the Company, or any contract, agreement, or arrangement with any third party.


 


5.5 No
Suspension of Trading in or Delisting of Common Shares. The Common Shares are quoted for trading on the Principal Market. The Company
shall not have received any written notice that is then still pending threatening the continued quotation of the Common Shares on the
Principal Market.


 


5.6 Bring
Down Certificate. The Investor shall have received on and as of the Closing Date a certificate of an executive officer of the Company
confirming that all of the representations and warranties of the Company in this Agreement are true and correct on and as of the Closing
Date, and that the Company has complied with all agreements and covenants and satisfied all other conditions on its part to be performed
or satisfied hereunder at or prior to the Closing Date.


 


5.7 Closing
Statement. The Company shall have received a letter, duly executed by an officer of the Company, setting forth wire transfer instructions
of the Company for the payment of the Purchase Price by the Investor.


 


6. Counterparts
and Delivery. This Agreement may be executed in two or more counterparts, all of which when taken together shall be considered
one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to each other party,
it being understood that the parties need not sign the same counterpart. In the event that any signature is delivered by e-mail delivery
of a “.pdf” format data file, such signature shall create a valid and binding obligation of the party executing (or on whose
behalf such signature is executed) with the same force and effect as if such “.pdf” signature page were an original thereof.


 






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7. Governing
Law. This Agreement shall be governed by and interpreted in accordance with the laws of the State of New York without regard to
the principles of conflict of laws. The parties further agree that any action between them shall be heard in New York County, New York,
and expressly consent to the jurisdiction and venue of the Supreme Court of New York, sitting in New York County, New York and the United
States District Court of the Southern District of New York, sitting in New York, New York, for the adjudication of any civil action asserted
pursuant to this Agreement.


 


8. Non-Exclusive Agreement.
Notwithstanding anything contained herein, this Agreement and the rights awarded to the Investor hereunder are non-exclusive, and
the Company may, at any time throughout the term of this Agreement and thereafter, issue and allot, or undertake to issue and allot, any
shares and/or securities and/or convertible notes, bonds, debentures, options to acquire shares or other securities and/or other facilities
which may be converted into or replaced by Common Shares or other securities of the Company, and to extend, renew and/or recycle any bonds
and/or debentures, and/or grant any rights with respect to its existing and/or future share capital.


 


9. Assignment.
Neither this Agreement nor any rights or obligations of the parties hereto may be assigned to any other Person.


 


10. Entire
Agreement; Amendments. This Agreement supersedes all other prior oral or written agreements between the Investor, the Company,
their respective affiliates and persons acting on their behalf with respect to the matters discussed herein, and this Agreement, together
with the SEPA, contains the entire understanding of the parties with respect to the matters covered herein and, except as specifically
set forth herein, neither the Company nor the Investor makes any representation, warranty covenant or undertaking with respect to such
matters. No provision of this Agreement may be waived or amended other than by an instrument in writing signed by the parties to this
Agreement.


 


11. The
SEPA. Other than as supplemented by this Agreement, the SEPA shall remain in full force and effect.


 


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IN WITNESS WHEREOF,
the parties hereto have caused this Supplemental Agreement to be signed by their duly authorized officers.


 


	 	COMPANY:
	 	EOS ENERGY ENTERPRISES, INC.
	 	 	 	 
	 	By:	/s/ Randall Gonzales 
	 	Name: 	Randall Gonzales
	 	Title:	Chief Financial Officer
	 	 	 	 
	 	INVESTOR: 
	 	YA II PN, LTD.
	 	 
	 	By:	Yorkville Advisors Global LP
	 	Its:	Investment Manager
	 	 	By:	Yorkville Advisors Global II, LLC
	 	 	Its:	General Partner
	 	 	 	 
	 	By:	/s/ Matt Beckman
	 	Name:	Matt Beckman
	 	Title:	Member


  




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EXHIBIT A


 


FORM OF PROMISSORY NOTE


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 




     


     


    

 


EXHIBIT B


 


FORM OF INVESTOR NOTICE


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 




     


     


    

 


Closing Statement


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 




     


     


    

 


EXHIBIT C


 


FORM OF SETTLEMENT DOCUMENT