NOTE 8 MINERAL PROPERTY INTERESTS AND PLANT AND EQUIPMENT

The applicable definition of proven and probable reserves is set forth in the Regulation S-K 1300 requirements of the SEC. If proven and probable reserves exist at the Company’s properties, the relevant capitalized mineral property interests and asset retirement costs are charged to expense based on the units of production method upon commencement of production. The Company’s Gold Bar Mine and San José properties have proven and probable reserves estimated in accordance with S-K 1300. The mineral properties associated with the Fox Complex include the Froome and Black Fox mines, the Grey Fox deposit, and the Stock property. The Fox Complex is depleted and depreciated using the units-of-production method over mineral resources, as the project does not have proven and probable reserves that conform to the guidance under S-K 1300.

The Company reviews and evaluates its long-lived assets for impairment on a quarterly basis or when events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Once it is determined that impairment exists, an impairment loss is measured as the amount by which the asset carrying value exceeds its estimated fair value.

During the three months ended March 31, 2025, no indicators of impairment were noted for any of the Company’s mineral property interests.