File: '\\swfile\EmailIn\20260522 115917 Attachment 20260522 - 08 GPS Implements New Omnibus Plan.docx'

GREAT PLAINS METALS CORP.

Contact: Investor Relations May 22, 2026

Phone (604) 684-2181 (No.2026-05-08)

Great Plains Implements New Omnibus Equity Incentive Plan

Vancouver, BC, Canada - Friday, May 22, 2026 - Great Plains Metals Corp. ("GPS" or "the Company", TSX-V: GPS, Frankfurt Exchange: 8VC) is pleased to announce that its Board of Directors has approved a new omnibus equity incentive plan (the "New Plan"), which is intended to replace the Company's current stock option plan last approved by shareholders at the annual general meeting held on November 20, 2024.

The New Plan is a "rolling up to 10% and fixed up to 10%" equity incentive plan, as such term is defined in TSX Venture Exchange (the "Exchange") Corporate Finance Manual Policy 4.4 - Security Based Compensation. The New Plan allows the Company to issue up to a maximum of 10% of the issued and outstanding common shares of the Company in stock options, and up to an aggregate of 7,694,071 common shares issuable pursuant to performance share units, deferred share units, restricted share units, and other share based awards, which number represents a fixed maximum under the New Plan, to directors, officers, employees, and consultants of the Company.

At the next annual general meeting of shareholders on May 28, 2026, the Company will ask shareholders to ratify and confirm the adoption of the New Plan, in accordance with Exchange requirements. The Exchange has conditionally approved the New Plan, however, it remains subject to final approval.

About Great Plains Metals Corp

GPS is an emerging Australia-focused copper-gold explorer. The strategy of GPS is to focus on drill-ready projects with a rapid discovery model in highly prospective geological addresses. The Company has a portfolio that consists of Yeoval Goodrich, located in the Lachlan Fold Belt; the Everton Project in Victoria; and an IOCG project in South Australia.

GREAT PLAINS METALS CORP.

For further information, please contact:

Peeyush Varshney

Phone: (604) 684-2181

www.greatplainsmetals.com

Cautionary Note Regarding Forward-Looking Statements

This news release contains certain statements that may be deemed "forward-looking statements." Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes", "intends", "estimates", "projects", "potential" and similar expressions, or that events or conditions "will", "would", "may", "could" or "should" occur. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or realities may differ materially from those in forward looking statements. Forward looking statements are based on the beliefs, estimates and opinions of the Company's management on the date the statements are made. Except as required by law, the Company undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release.