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Trilogy Metals Announces Publication of Notice of Intent by U.S. Army Corps of Engineers for Alaska's High-Grade Arctic Copper-Zinc-Lead-Gold-Silver Project

TMQ
  • U.S. Army Corps of Engineers published a Notice of Intent to prepare an Environmental Impact Statement for Trilogy Metals' Arctic Project in Alaska's Ambler Mining District.
  • The Notice of Intent formally initiates the National Environmental Policy Act review & launches the public scoping phase.
  • The project is advanced by Ambler Metals LLC, a 50/50 joint venture between Trilogy Metals & South32 Limited.
  • The milestone aligns with the FAST-41 permitting schedule & the Integrated Federal & State Timetable published in July 2026.
  • The U.S. Army Corps of Engineers received the Clean Water Act Section 404 permit application from Ambler Metals on April 20, 2026.
  • The agency aims to publish a Draft Environmental Impact Statement in October 2027 & a Record of Decision in September 2028.
  • The federal review process targets overall completion in November 2028, concurrent with State of Alaska & Northwest Arctic Borough permitting milestones.
  • The 29-month integrated review timetable is materially ahead of historical baselines for comparable federal reviews.
  • Trilogy Metals holds a 50 percent interest in Ambler Metals LLC, which holds 100 percent interest in the Upper Kobuk Mineral Projects.
  • The project involves polymetallic volcanogenic massive sulfide deposits containing copper, zinc, lead, gold, & silver.