Trilogy Metals gains federal OK for Ambler road

Executive Summary

• Trilogy Metals announces that the Alaska Industrial Development and Export Authority (AIDEA) has executed federal right-of-way permits for the Ambler Access Project, re-establishing authorizations required to advance the road.
• The permits restore the 50-year right-of-way across federally managed lands originally granted in 2020, following a presidential decision on October 6, 2025, directing federal agencies to reissue necessary authorizations.
• With permits in effect, AIDEA plans to proceed with road planning activities, including updating detailed engineering plans, programs, and budgets for the upcoming year.

Key Details

• Project Scope: The Ambler Access Project is a proposed 211-mile, industrial-use-only road connecting the Upper Kobuk mineral projects (UKMP) to the Dalton Highway.
• Purpose: The road enables the advancement of exploration and development at the Ambler mining district in northwest Alaska, described as home to some of the world's richest known copper-dominant polymetallic deposits.
• Permitting Authority: The right-of-way permits were executed with the U.S. Army Corps of Engineers, the National Park Service, and the Bureau of Land Management (BLM).
• Legal Basis: The issuance follows Section 1106 of the Alaska National Interest Lands Conservation Act (ANILCA), specifically a presidential decision dated October 6, 2025.
• Next Steps: AIDEA will proceed with road planning activities, specifically updating detailed engineering plans, programs, and budgets for next year.
• Company Interest: Trilogy Metals holds a 50% interest in Ambler Metals LLC, which holds a 100% interest in the UKMP.
• Asset Details: The UKMP is located within the Ambler mining district, spanning approximately 190,929 hectares. It hosts world-class polymetallic volcanogenic massive sulphide (VMS) deposits (copper, zinc, lead, gold, silver) and carbonate replacement deposits (high-grade copper and cobalt).
• Key Deposits: Exploration has focused on the Arctic VMS deposit and the Bornite carbonate replacement deposit.
• Strategic Context: Management highlights the road's potential to strengthen U.S. domestic supplies of copper and critical minerals for national defense, energy infrastructure, advanced manufacturing, and AI data centers.

Notable Quotes

• "The execution of these federal permits marks a pivotal milestone for the Ambler Road and the State of Alaska. We commend the leadership of AIDEA and the federal government in moving this strategic project forward. The road will provide access to a mining district that has the potential to strengthen the United States' ability to secure domestic supplies of copper and other critical minerals essential to national defence, energy infrastructure, advanced manufacturing and the rapid growth of AI data centres. The Ambler mining district is ready to play a vital role in supporting America's strategic and technological leadership." — Tony Giardini, President and CEO