McEwen Inc.

The Tartan Mine Project is located in Flin Flon, Manitoba and was acquired as part of our Canadian Gold acquisition completed on January 5, 2026.

During Q3/26, a total of $3.1 million (9M/26 - $6.3 million) was incurred at the Tartan Mine Project to advance drilling, permitting, and metallurgical testing to optimize both process plant designs and underground mine plans, and engineering studies. The same factors which contributed to the 9M/26 expenditures are expected to continue for the remainder of the year. Further, a technical report summary was published in Q2/26 highlighting an estimated 308,900 ounces of indicated gold resources and 302,700 ounces of inferred gold resources.

As per the technical report, a second diamond drill was added to support exploration and infill drilling aimed at expanding the resource and upgrading inferred resources to indicated, for mine planning purposes. Results included significant assays from the deepest holes drilled to date in the West and South Zones, demonstrating mineralization at depth as well as the discovery of the Central zone. Infill drilling and expansion of the main high-grade shoot also increased resource confidence and highlighted further growth potential. It is expected that an updated Mineral Resource Estimate be produced with the year 2026 results in Q1 2027.