File: Attachment GRB - July 17, 2026 - Reprice and Extend Options.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 www.greenbriarliving.com

NEWS RELEASE

Greenbriar Announces Repricing and Extension of Stock Options

Scottsdale, Arizona, July 17, 2026 - Greenbriar Sustainable Living Inc. (TSXV: GRB) (OTC: GEBRF) ("Greenbriar" or the "Company") announces that it has repriced and extended an aggregate of 500,000 incentive stock options (the "Options") to certain advisors of the Company pursuant to the Company's previously approved Stock Option Plan. The Options were previously priced at $1.00 per share expiring on December 31st, 2026. The reprice and extension will be $0.63 per share and December 31st, 2028 respectively. 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

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

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 may contain "forward-looking information" and "forward-looking statements" within the meaning of applicable Canadian securities laws. Forward-looking statements in this news release include statements regarding the grant of incentive stock options and any required acceptance or approval by the TSX Venture Exchange. Forward-looking statements are based on management's current expectations, estimates, assumptions and beliefs, and are subject to known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those expressed or implied by such forward-looking statements.

There can be no assurance that such forward-looking statements will prove to be accurate. Readers are cautioned not to place undue reliance on forward-looking statements. Additional information regarding risks and uncertainties applicable to the Company is available under the Company's profile on SEDAR+ at www.sedarplus.ca. The Company undertakes no obligation to update or revise any forward-looking statements, except as required by applicable law.

"Greenbriar Capital Corp. was recognized as a TSX Venture 50trademark company in 2014 and 2023. TSX Venture 50 is a trade-mark of TSX Inc. and is used under license."

TSX Venture Exchange Symbol: GRB | US OTC Symbol: GEBRF

File: '\\swfile\EmailIn\20260717 132958 Attachment GRB - July 17, 2026 - Reprice and Extend Options.docx'

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"Greenbriar Capital Corp. was recognized as a TSX Venture 50(TM) company in 2014 and 2023.

TSX Venture 50 is a trade-mark of TSX Inc. and is used under license."

TSX Venture Exchange Symbol: GRB | US OTC Symbol: GEBRF

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

www.greenbriarliving.com

"Greenbriar Capital Corp. was recognized as a TSX Venture 50(TM) company in 2014 and 2023.

TSX Venture 50 is a trade-mark of TSX Inc. and is used under license."

TSX Venture Exchange Symbol: GRB | US OTC Symbol: GEBRF

NEWS RELEASE

Greenbriar Announces Repricing and Extension of Stock Options

Scottsdale, Arizona, July 17, 2026 - Greenbriar Sustainable Living Inc. (TSXV: GRB) (OTC: GEBRF) ("Greenbriar" or the "Company") announces that it has repriced and extended an aggregate of 500,000 incentive stock options (the "Options") to certain advisors of the Company pursuant to the Company's previously approved Stock Option Plan. The Options were previously priced at $1.00 per share expiring on December 31st, 2026. The reprice and extension will be $0.63 per share and December 31st, 2028 respectively.

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

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 may contain "forward-looking information" and "forward-looking statements" within the meaning of applicable Canadian securities laws. Forward-looking statements in this news release include statements regarding the grant of incentive stock options and any required acceptance or approval by the TSX Venture Exchange. Forward-looking statements are based on management's current expectations, estimates, assumptions and beliefs, and are subject to known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those expressed or implied by such forward-looking statements.

There can be no assurance that such forward-looking statements will prove to be accurate. Readers are cautioned not to place undue reliance on forward-looking statements. Additional information regarding risks and uncertainties applicable to the Company is available under the Company's profile on SEDAR+ at www.sedarplus.ca. The Company undertakes no obligation to update or revise any forward-looking statements, except as required by applicable law.