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

The U.S. Army Corps of Engineers has published a Notice of Intent to prepare an Environmental Impact Statement for Trilogy Metals' flagship Arctic copper-zinc-lead-gold-silver project in Alaska's Ambler Mining District, formally commencing the NEPA review and public scoping phase. The milestone was achieved on schedule under the FAST-41 framework, with the USACE and cooperating agencies targeting a draft EIS in October 2027 and a Record of Decision in September 2028 — an estimated 29-month integrated federal and state review that management describes as materially ahead of the historical baseline, with overall permitting targeted for November 2028.

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