Advancing resource confidence and restart strategy at Minto Min

Selkirk Copper Mines Inc. has annunced that it is nearing completion of its 50,000 m Phase 1 drill program at the Minto copper-gold-silver project in Yukon, with approximately 97% of the work already finalized. The results are not only expanding the known mineralization but are also playing a key role in shaping the upcoming Preliminary Economic Assessment (PEA), scheduled for mid-2026.

Restart plan is getting better defined

As CEO M. Colin Joudrie emphasized: “As we near completion of the planned 50,000 m Phase 1 drill program […] the restart plan is getting better defined. […] Drilling continues to define and expand zones of high-grade mineralization […] and results are being incorporated into ongoing resource modelling and study work as we advance the PEA.”

High-grade mineralization

From a technical perspective, the latest drilling confirms strong continuity of high-grade mineralization at Minto North, while step-out drilling at Minto East continues to validate a system of stacked lenses extending to greater depths than previously recognized. At the same time, results from Ridgetop and Area 118 highlight the potential for near-surface resources that could support open-pit development scenarios, particularly in early production stages.

Integration of the data

What makes this phase particularly important is not only the increase in resource confidence, but also the integration of geological data with engineering and economic analyses. This combined approach is progressively reducing uncertainty and strengthening the foundation for a potential restart of operations.

In this context, Minto is transitioning into a well-defined, multi-zone system with clear expansion potential, where exploration results are directly contributing to a more robust and credible development strategy.