File: '\\swfile\EmailIn\20260601 100620 Attachment 20260601 - 09 GPS Announces AGM Results.docx'

GREAT PLAINS METALS CORP.

Contact: Investor Relations June 1, 2026

Phone (604) 684-2181 (No.2026-06-09)

Great Plains Reports Voting Results from its Annual General Meeting

Vancouver, BC, Canada - Monday, June 1, 2026 - Great Plains Metals Corp. ("GPS" or "the Company", TSX-V: GPS, Frankfurt Exchange: 8VC) announces the details of the voting results from its Annual General Meeting, held on May 28, 2026 in Vancouver, BC.

By resolution passed via ballot, the four nominees referenced below were appointed as Directors of the Company to serve until the next annual meeting of shareholders of the Company, or until their successors are elected or appointed. The results of the ballot were as follows:

Name of Nominee Votes For Percent Votes Withheld Percent

Douglas Kirwin 11,042,666 100.00% 0 0%

Rupert Williams 11,042,666 100.00% 0 0%

Peeyush Varshney 11,042,666 100.00% 0 0%

Aidan Bishop 11,042,666 100.00% 0 0%

Shareholders also voted in favour of (i) the re-appointment of Smythe LLP, as auditors of the Company for the ensuing year and authorizing the Directors to fix their remuneration; (ii) fixing the number of directors on the Company's Board of Director at four (4) persons, and (iii) approving the new Omnibus Equity Incentive Plan (the "Omnibus Plan").

The Omnibus 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 Omnibus 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 7,697,071 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 Omnibus Plan, to directors, officers, employees, and consultants of the Company.

The Omnibus Plan remains subject to the final acceptance of the Exchange.

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.