2026 Copperstone PFS Mineral Reserve Estimate

• The effective date for the Mineral Reserve is December 1, 2025
•  The Mineral Reserve Estimate has been classified in accordance with the CIM Definition Standards for Mineral Resources and Mineral Reserves (2014) incorporated by reference into NI 43-101.
•  Costs were based on the operating costs ranges as outlined in Table 1.
• Mineral Reserves were estimated using a gold price of $3,000/oz, metallurgical recovery of 95%, and a cut-off grade of 0.0642 oz/ton Au (2.2 g/t Au). Mining recovery of 95% and external dilution of 10% at zero grade applied.
•  Inferred mineral resources are not mineral reserves and do not have demonstrated economic viability. Inferred resources are excluded from this reserve estimate and treated as waste.
•  Numbers are rounded to the nearest ton or ounce; rounding may cause minor discrepancies in totals.
•  Reserves are contained within the measured and indicated mineral resources. No additional material has been added.
•  Peter Szkilnyk, P.Eng., is responsible for reviewing and approving the Copperstone mine underground Mineral Reserve Estimate. Mr. Szkilnyk is a Qualified Person (“QP”) as set out in the NI 43-101.

In a news release dated May 27, 2026, the Company announced the results of a pre-feasibility study on the Copperstone project. A technical report for the Copperstone PFS is being prepared in accordance with NI 43-101 and will be filed under the Company’s profile on SEDAR+ and on the Company’s website within 45 days of the news release.