6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 2025

Commission File No. 000-56391

Greenbriar Sustainable Living Inc.
(Translation of registrant's name into English)

632 Foster Avenue Coquitlam, British Columbia, Canada V3J 2L7

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F

Form 20-F ☑ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1) ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7) ☐

SUBMITTED HEREWITH

Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Greenbriar Sustainable Living Inc.

/s/ Jeff Ciachurski

______________________________________ Jeff Ciachurski Chief Executive Officer

Date: April 15, 2025

Greenbriar Sustainable Living Inc.: Exhibit 99.1 - Filed by newsfilecorp.com

NEWS RELEASE

Greenbriar Announces Governing Board Approval and Submission by PREPA of Settlement Pricing Agreement to the Puerto Rico Energy Bureau

Trading Symbol:

TSX Venture Exchange: GRB

US OTC Market:GEBRF

Scottsdale, Arizona, April 15^th^, 2025 - Greenbriar Sustainable Living Inc. (TSXV: GRB) (OTC: GEBRF) ("Greenbriar" or the "Company") announces that the Puerto Rico Energy Power Authority ("PREPA") has formally approved a settlement agreement ("Settlement Agreement") with the Company's wholly owned subsidiary PBJL Energy Corporation ("PBJL"), and approved the pricing terms that has now been submitted to the Puerto Rico Energy Bureau ("PREB") to continue with the approval process and, only if eventually necessary, to the Financial Oversight and Management Board ("FOMB").

Per the terms of the Settlement Agreement, PBJL will receive a rate of USD $0.0985 per kwh, with increases of $0.005 per year capped and/or never to exceed USD $0.115 per kwh.

Greenbriar has a project level lender who can provide debt financing for this project at the non-dilutionary project level.  The project is 80 MWac and sized at 160 MWdc to annually produce 280 million kwh per year with a minimum contract life of 25 years.  The US Federal Government provides a fully fungible 30% federal tax credit with an additional 10% to total 40% of the total capital costs if at least 40% of the materials are US made.

About Greenbriar Sustainable Living Inc.

Greenbriar is a leading developer of sustainable real estate and renewable energy. With long-term, high impact projects and led by a successful industry-recognized operating and development team, Greenbriar targets deep valued assets directed at accretive shareholder value.

ON BEHALF OF THE BOARD OF DIRECTORS

"Jeff Ciachurski"

Jeffrey J. Ciachurski Chief Executive Officer and Director Phone: 949.903.5906

The TSX Venture Exchange has not reviewed and does not accept responsibility for the accuracy or adequacy of this release. Neither the TSX Venture Exchange nor its Regulation Service Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.'

This news release includes "forward-looking statements" and "forward-looking information" within the meaning of Canadian securities laws and United States securities laws (together, "forward-looking statements"). All statements included in this news release, other than statements of historical fact, are forward-looking statements including, without limitation, statements with respect to the closing of the Shares for Debt Transaction, the issuance of Common Shares, and the approval of the Shares for Debt Transaction and the issuance of Options by the TSX Venture Exchange. Forward-looking statements include predictions, projections and forecasts and are often, but not always, identified by the use of words such as "anticipate", "believe", "plan", "estimate", "expect", "potential", "target", "budget", "propose" and "intend" and statements that an event or result "may", "will", "should", "could" or "might" occur or be achieved and other similar expressions and includes the negatives thereof.

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Forward-looking statements are based on a number of assumptions and estimates that, while considered reasonable by management based on the business and markets in which the Company operates, are inherently subject to significant operational, economic, and competitive uncertainties, risks and contingencies. These include assumptions regarding, among other things: general business and economic conditions. There can be no assurance that forward-looking statements will prove to be accurate and actual results, and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations include those described under the heading "Risks and Uncertainties" in the Company's most recently filed MD&A (a copy of which is available under the Company's SEDAR profile at (www.sedarplus.ca). The Company does not undertake to update or revise any forward-looking statements, except in accordance with applicable law.