U.S. GoldMining starts drilling at Whistler Gold-Copper Project in Alaska

Filed July 6, 2026 · Period ending July 6, 2026 · ~1 min read

Key Changes

• high

  Company commenced 2026 drilling program at 100%-owned Whistler Gold-Copper Project in Alaska, targeting 8-10 high-priority exploration sites within a 7.5 km by 4.5 km porphyry cluster with over 25 targets.

  Item 7.01 — Regulation FD Disclosure verify on EDGAR →
• high

  Preliminary economic assessment shows after-tax NPV of $2.0 billion at 5% discount, 33% internal rate of return, and 2.1-year payback using only indicated resources from one of three deposits on the property.

  Exhibit 99.1 verify on EDGAR →
• medium

  Program is fully funded to drill minimum 6,000 meters of core, with first assay results expected by end of Q3 2026 subject to laboratory turnaround times.

  Exhibit 99.1 verify on EDGAR →