Amendment No. 3 to Business Combination Agreement, dated as of August 3, 2021, by and among the RAC Buyer, Aria and the Equityholder Representative

Exhibit 2.5

AMENDMENT NO. 3 TO BUSINESS COMBINATION AGREEMENT

This AMENDMENT NO. 3 TO BUSINESS COMBINATION AGREEMENT, dated as of August 3, 2021 (this “Amendment”), to the BUSINESS COMBINATION AGREEMENT (as amended, the “Agreement”), dated as of April 7, 2021, by and among (a) LFG Buyer Co, LLC (the “Buyer”), (b) Inigo Merger Sub, LLC, a direct wholly owned Subsidiary of the Buyer, (c) LFG Intermediate Co, LLC, (d) Aria Energy LLC (the “Company”), (e) Rice Acquisition Holdings LLC, (f) Aria Renewable Energy Systems LLC, solely in its capacity as representative of the Company Unitholders (the “Equityholder Representative”) and (g) solely for purposes of Section 2.2, Article IV, Article V, Article VI, and Article XI thereof, Rice Acquisition Corp. (“RAC”), is entered into by and among the Buyer, the Company and the Equityholder Representative. The Buyer, the Company and the Equityholder Representative shall be referred to herein from time to time collectively as the “Parties.” Capitalized terms used but not otherwise defined herein shall have the meanings set forth in the Agreement.

WITNESSETH:

WHEREAS, pursuant to and in accordance with Section 11.1 of the Agreement, the Agreement may be amended or modified only by a written agreement executed and delivered by the Buyer, the Company and the Equityholder Representative; and

WHEREAS, the Buyer, the Company and the Equityholder Representative desire to amend the Agreement as set forth herein.

NOW, THEREFORE, in consideration of the rights and obligations contained herein, and for other good and valuable consideration, the adequacy of which is hereby acknowledged, the Parties agree as follows:

Section 1. Amendments to the Agreement. Exhibit D to the Agreement is hereby amended and restated in its entirety as set forth on Exhibit A hereto.

Section 2. No Other Amendments. Each reference to “this Agreement,” “hereunder,” “hereof” and other similar references set forth in the Agreement and each reference to the Agreement in any other agreement, document or other instrument shall, in each case, refer to the Agreement as modified by this Amendment. Except as and to the extent expressly modified by this Amendment, the Agreement is not otherwise being amended, modified or supplemented and shall remain in full force and effect and is hereby in all respects ratified and confirmed, and the execution, delivery and effectiveness of this Amendment shall not operate as a waiver of any right, power or remedy of any party under the Agreement.

Section 3. Miscellaneous Provisions. Article XI of the Agreement shall apply to this Amendment mutatis mutandis.

[Signature Page Follows]

IN WITNESS WHEREOF each Party has hereunto caused this Amendment to be duly executed on its behalf as of the day and year first above written.

[Signature Page to Amendment No. 3 to Business Combination Agreement]