GPM Metals — Board/Management Information 2026

Apr 10, 2026

FORM 51-102F3
Material Change Report
MATERIAL CHANGE REPORT UNDER SECTION 7.1(2) OR (3) OF
NATIONAL INSTRUMENT NO. 51-102

Item 1. Reporting Issuer
GPM Metals Inc. (the “Company”)
141 Adelaide Street West
Suite 1101
Toronto, Ontario
M5H 3L5

Item 2. Date of Material Change
A material change took place on April 1, 2026.

Item 3. Press Release
The Company disseminated a news release in respect of the material change on April 2, 2026. A copy of the news release was also filed on SEDAR+ under the Company’s issuer profile, on April 2, 2026.

Item 4. Summary of Material Change
For further information, attached as Schedule “A” is a copy of the Press Release.

Item 5. Full Description of Material Change
For further information, attached as Schedule “A” is a copy of the Press Release.

Item 6. Reliance on subsection 7.1(2) of National Instrument 51-102
The report is not being filed on a confidential basis.

Item 7. Omitted Information
No information has been omitted.

Item 8. Executive Officer
John Timmons, Chief Executive Officer
(416) 628-5904

Item 9. Date of Report
DATED at Toronto, in the Province of Ontario, this 10th day of April, 2026.

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SCHEDULE “A”

GPM METALS ANNOUNCES DIRECTOR CHANGES

April 2, 2026 (Toronto, Ontario) – GPM Metals Inc. (TSXV:GPM) (“GPM” or the “Company”) announces changes to the Board of Directors.

Bruce Rosenberg has resigned from the GPM Board of Directors, Bruce was a long-serving member of the Board and his guidance and contributions over the past 17 years were greatly appreciated. The Company wishes him the very best in his many future endeavours.

The Company also announces the appointment of Paul Hafner to the Board of Directors effective immediately. Paul has served in various senior corporate affairs roles with a focus on regulatory compliance and corporate operations, including his current role as Vice President of Corporate Affairs for G2 Goldfields. Paul has experience in the junior mining sector and a strong track record in navigating complex regulatory environments.

For further information please contact:

GPM Metals Inc.
Suite 1101-141 Adelaide Street West
Toronto, Ontario M5H 3L5
Telephone: +416 628 5904
Email: info@gpmmetals.com
Web: www.gpmmetals.com

About GPM Metals:

GPM Metals Inc. is a mineral exploration company exploring for large base metals deposits in Australia. The Company's wholly owned Walker Gossan Project is a large scale (190,000 Hectares) Zinc-Silver-Lead project in East Arnhem Land NT, Australia.

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

Forward-Looking Statements

Information set forth in this news release involves forward-looking information under applicable securities laws. The forward-looking statements contained herein include, but are not limited to, the intended use of proceeds and the receipt of TSXV approval, and all such forward-looking statements are expressly qualified in their entirety by this cautionary statement. The forward-looking statements included in this news release are made as of the date hereof and the Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable securities legislation. Although the Company believes that the expectations represented in such forward-looking statements are reasonable, there can be no assurance that such expectations will prove to be correct and, accordingly, undue reliance should not be put on such forward-looking statements. This news release does not constitute an offer to sell or solicitation of an offer to buy any of the securities described herein.