2026 Copperstone PFS Mineral Resource Estimate

• The effective date of the Mineral Resource Estimate is December 1, 2025
• The Mineral Resource 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, and CIM Estimation of Mineral Resources and Mineral Reserves Best Practice Guidelines (2019).The estimate of mineral resources may be materially affected by environmental, permitting, legal, marketing or other relevant issues.
• The mineral resource is reported at an underground mining cut-off of 0.064 oz/ton (2.2 g/t Au) within estimated blocks which meet the criteria of a minable shape (minimum mining width of 9ft). The cut-off is based on the following assumptions: a gold price of $3,000/oz; assumed mining cost of $102.87/ton ($113.16/tonne), process costs of $42.64/ton ($46.90/tonne), general and administrative and property/severance tax costs of $16.39/ton ($18.03/tonne), refining and shipping costs of $12.00/oz, a metallurgical recovery for gold of 95%, and a 4.5% gross royalty.
• Resources are reported using at a minimum overall gold cut-off grade of 0.064 oz/ton Au (2.2 g/t Au).  Internal dilution is incorporated into the MSO shape volumes as part of the estimated quantities and grades.
• Previously mined areas were modelled based on all available records and were excluded from reporting of this mineral resource.
• Mineral Resources are reported inclusive of Mineral Reserves. Mineral Reserves are estimated from Measured and Indicated Mineral Resources. Inferred Mineral Resources are not included in the Mineral Reserves.
• Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability and may be materially affected by modifying factors including but not restricted to mining, processing, metallurgical, infrastructure, economic, marketing, legal, environmental, social and governmental factors.
• There has been insufficient exploration to define the Inferred Resources tabulated above as an Indicated or Measured Mineral Resource, however, it is reasonably expected that the majority of the Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration. There is no certainty that any part of the Mineral Resources estimated will be converted into Mineral Reserves.
• Numbers in the table have been rounded to reflect the accuracy of the estimate and may not sum due to rounding.
• Scott Zelligan, P. Geo. is responsible for reviewing and approving the Copperstone mine underground Mineral Resource Estimate. Mr. Zelligan is a Qualified Person (“QP”) as set out in 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.