Graphite One Inc. — Audit Report / Information 2024

Feb 12, 2026

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February 11, 2026

British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan Manitoba Securities Commission Ontario Securities Commission Financial and Consumer Services Commission (New Brunswick) Nova Scotia Securities Commission Office of the Superintendent of Securities Service Newfoundland and Labrador Financial and Consumer Services Division (Prince Edward Island) Office of the Superintendent of Securities (Northwest Territories) Office of the Yukon Superintendent of Securities Office of the Superintendent of Securities Nunavut

We refer to the prospectus supplement dated February 11, 2026, to the short form base shelf prospectus of Graphite One Inc. (the Company) dated January 20, 2026, relating to the issue and sale of up to \$30 million worth of units (the prospectus).

We consent to being named in and to the use, through incorporation by reference, in the abovementioned prospectus of our report dated April 10, 2025 to the shareholders of the Company on the following consolidated financial statements:

• consolidated statements of financial position as at December 31, 2024 and 2023;
• consolidated statements of loss and comprehensive loss, shareholders' equity and cash flows for the years then ended; and
• the notes to the consolidated financial statements, comprising material accounting policy information and other explanatory information.

We report that we have read the prospectus and all information specifically incorporated by reference therein and have no reason to believe that there are any misrepresentations in the information contained therein that is derived from the consolidated financial statements on which we have reported, or that are within our knowledge as a result of our audit of such consolidated financial statements. We have complied with Canadian generally accepted standards for an auditor's consent to the use of a report of the auditor included in an offering document, which does not constitute an audit or review of the prospectus as these terms are described in the CPA Canada Handbook – Assurance.

/s/PricewaterhouseCoopers LLP

Chartered Professional Accountants