File: Attachment GRB December 23, 2024.pdf

Greenbriar Sustainable Living Inc. Greenbriar Capital Holdco Inc. Greenbriar Capital (US) LLC

632 Foster Avenue, Coquitlam, British Columbia, Canada V3J 2L7 Phone: 949.903.5906 Fax: 604.608.9572

greenbriarliving.com

NEWS RELEASE

Puerto Rico Energy Bureau accepts dismissal of the Greenbriar PREPA case

and retains jurisdiction for enforcement of the settlement agreement

.

December 23, 2024 Trading Symbol:

TSX Venture Exchange: GRB US OTC Market: GEBRF

Scottsdale, Arizona, December 23, 2024 - Greenbriar Sustainable Living Inc. (TSXV: GRB) (OTC: GEBRF) ("Greenbriar" or the "Company") is pleased to announce that both PREPA and Greenbriar filed a Joint Motion to Submit Settlement Agreement to the Puerto Rico Energy Bureau (PREB). In the motion, the Parties submitted the Settlement Agreement between PREPA and PBJL (Greenbriar) requesting that judgment be entered pursuant to the Settlement Agreement, and that the above-mentioned case be closed with prejudice and for the Energy Bureau to retain jurisdiction for the enforcement of the settlement agreement. On December 19, 2024 PREB accepted the voluntary dismissal and ORDERS the closing of this case, with prejudice.

Of special note is the fact the PREB will enforce the settlement agreement.

The Company is thrilled that the Puerto Rico Energy Bureau will enforce our Settlement Agreement and any amendments requiring commercial adjustments reside within the discretion of Cliff Webb and Luis Baco to file from time to time the modifications as required.

As previously disclosed, Luis Baco, our legal counsel in both Puerto Rico and Washington DC, has served for many years as the Chief of Staff to the incoming new Governor of Puerto Rico. We expect a successful closing.

About Greenbriar Sustainable Living:

Greenbriar is a 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 sustainable assets directed at accretive shareholder value.

ON BEHALF OF THE BOARD OF DIRECTORS

Jeffrey J. Ciachurski Chief Executive Officer and Director

"Greenbriar Sustainable Living Inc. was recognized as a TSX Venture 50trademark company in 2014 and 2023. TSX Venture 50 is a trademark of TSX Inc. and is used under license."

TSX Venture Exchange Symbol: GRB | US OTC Symbol: GEBRF Ph.: +1 (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. Cautionary Note Regarding Forward-Looking Statements 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 relating to the Amended MD&As and the 2024 Annual Financial Statements, including the anticipated adjustments to be reflected in the 2024 Annual Financial Statements and the expected filing thereof. 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. 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: market prices, continued availability of capital financing and general economic, market or business conditions. Market conditions could alter the projects of Greenbriar and such potential events like bad credit markets, worldwide economic depression, unforeseen regulatory hurdles or acts of God, could inhibit or prevent some or all of the Greenbriar projects from materializing or completing. 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. For more information on the Company and important factors that could cause actual results to differ materially from the Company's expectations, investors should review the Company's continuous disclosure filings that are available on SEDAR+ at www.sedarplus.ca. Forward-looking statements contained herein are made as of the date hereof. No obligation is undertaken to update publicly or otherwise revise any forward- looking statements or the foregoing lists of factors and assumptions, whether as a result of new information, future events or results or otherwise, except as required by law.

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"Greenbriar Sustainable Living Inc. was recognized as a TSX Venture 50trademark company in 2014 and 2023. TSX Venture 50 is a trademark of TSX Inc. and is used under license." TSX Venture Exchange Symbol: GRB | US OTC Symbol: GEBRF