Trilogy Metals Provides Update on the Issuance of Federal Right-of-Way Permits for the Ambler Access Project in Alaska

Rhea-AI Summary

Trilogy Metals (NYSE American: TMQ) reported that the Alaska Industrial Development and Export Authority (AIDEA) has executed federal Right-of-Way permits for the Ambler Access Project, restoring federal authorizations needed to advance the proposed 211-mile industrial-use road from the Upper Kobuk Mineral Projects to the Dalton Highway.

The permits follow the Oct 6, 2025 Presidential decision under Section 1106 of ANILCA and restore a 50-year right-of-way originally granted in 2020. With permits in effect, AIDEA plans to update detailed engineering plans, programs and budgets next year to progress road planning.

Positive

• Federal Right-of-Way permits executed for the Ambler Access Road
• Restored 50-year right-of-way across federally managed lands
• Proposed 211-mile industrial road to connect UKMP to Dalton Highway
• AIDEA to update engineering plans, programs and budgets in 2026

Negative

• None.

Insights

Infrastructure and permitting analyst

Federal right-of-way permits re-issued for the Ambler Access Road, restoring long‑term federal authorization and enabling next‑stage planning.

Trilogy Metals and AIDEA now hold executed federal Right-of-Way permits from the U.S. Army Corps of Engineers, the National Park Service and the BLM as of Oct 24, 2025, restoring the 50-year corridor authorization originally granted in 2020. This action follows a Presidential decision under Section 1106 of ANILCA to direct agencies to re-issue the authorizations. With these permits in effect, AIDEA plans to update detailed engineering plans, programs and budgets for the road next year.

The business mechanism is straightforward: federal permits clear a major regulatory hurdle for the Ambler Access Road, allowing capital planning and more definitive engineering work to proceed. Key dependencies remain federal and state project execution by AIDEA, updated engineering outcomes, and the translation of planning into funded construction contracts. Risks include potential future legal, environmental, or stakeholder challenges and the need for finalized budgets and procurement decisions before construction can start.

Watch for concrete milestones in the coming 12 months: published detailed engineering plans, definitive construction budgets, and any stated procurement timelines. Those items will materially change project risk and timing profiles and should be the next evidence points to assess progress.

VANCOUVER, BC, Oct. 24, 2025 /PRNewswire/ - Trilogy Metals Inc. (NYSE American: TMQ) (TSX: TMQ) ("Trilogy" or the "Company") is providing an update on the Ambler Access Project ("AAP" or "Ambler Access Road") – the proposed 211-mile, industrial-use-only road from the Upper Kobuk Mineral Projects ("UKMP") to the Dalton Highway that would enable the advancement of exploration and development at the Ambler Mining District in Northwest Alaska, home to some of the world's richest known copper-dominant polymetallic deposits. 

Trilogy is pleased to announce that the Alaska Industrial Development and Export Authority ("AIDEA") has executed the Right-of-Way permits for the Ambler Access Road with the U.S. Army Corps of Engineers, the National Park Service and the Bureau of Land Management ("BLM"), formally re-establishing the federal authorizations required to advance the road project.

The issuance of these permits follows the October 6, 2025 Presidential decision under Section 1106 of the Alaska National Interest Lands Conservation Act ("ANILCA") directing federal agencies to re-issue the authorizations necessary for construction and operation of the Ambler Access Road. The executed permits restore the 50-year right-of-way across federally managed lands originally granted in 2020.

Now with the federal Right-of-Way permits in effect, AIDEA plans to proceed with road planning activities including updating detailed engineering plans, programs and budgets for next year.

Tony Giardini, President and CEO of Trilogy Metals, commented: "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 defense, energy infrastructure, advanced manufacturing and the rapid growth of AI data centers. The Ambler Mining District is ready to play a vital role in supporting America's strategic and technological leadership."

About Trilogy Metals

Trilogy Metals Inc. is a metal exploration and development company which holds a 50 percent interest in Ambler Metals LLC, which has a 100 percent interest in the Upper Kobuk Mineral Projects in northwestern Alaska. On December 19, 2019, South32, a globally diversified mining and metals company, exercised its option to form a 50/50 joint venture with Trilogy. The UKMP is located within the Ambler Mining District which is one of the richest and most-prospective known copper-dominant districts in the world. It hosts world-class polymetallic volcanogenic massive sulphide ("VMS") deposits that contain copper, zinc, lead, gold and silver, and carbonate replacement deposits which have been found to host high-grade copper and cobalt mineralization. Exploration efforts have been focused on two deposits in the Ambler Mining District – the Arctic VMS deposit and the Bornite carbonate replacement deposit. Both deposits are located within a land package that spans approximately 190,929 hectares. Ambler Metals has an agreement with NANA Regional Corporation, Inc., an Alaska Native Corporation that provides a framework for the exploration and potential development of the Ambler Mining District in cooperation with local communities. Trilogy's vision is to develop the Ambler Mining District into a premier North American copper producer while protecting and respecting subsistence livelihoods.

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain "forward-looking information" and "forward-looking statements" (collectively "forward-looking statements") within the meaning of applicable Canadian and United States securities legislation including the United States Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, included herein, including, without limitation, the effects of the Presidential decision and execution of the ROW as described above, potential actions resulting from executive orders, presidential decisions and statements from the U.S. administrations, Department of the Interior, Bureau of Land Management, AIDEA's plans with respect to the Ambler Access Road, perceived merit of the Ambler Mining District and the Ambler Access Road, and the Company's plans to provide further updates and the timing thereof are forward-looking statements. Forward-looking statements are frequently, but not always, identified by words such as "expects", "anticipates", "believes", "intends", "estimates", "potential", "possible", and similar expressions, or statements that events, conditions, or results "will", "may", "could", or "should" occur or be achieved. Forward-looking statements involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations include the uncertainties involving our ability to conserve cash and to raise capital at terms favorable to the Company, or at all and other risks and uncertainties disclosed in the Company's Annual Report on Form 10-K for the year ended November 30, 2024 filed with Canadian securities regulatory authorities and with the United States Securities and Exchange Commission and in other Company reports and documents filed with applicable securities regulatory authorities from time to time. The Company's forward-looking statements reflect the beliefs, opinions and projections on the date the statements are made. The Company assumes no obligation to update the forward-looking statements or beliefs, opinions, projections, or other factors, should they change, except as required by law.

View original content:https://www.prnewswire.com/news-releases/trilogy-metals-provides-update-on-the-issuance-of-federal-right-of-way-permits-for-the-ambler-access-project-in-alaska-302593461.html

SOURCE Trilogy Metals Inc.

FAQ

What did Trilogy Metals (TMQ) announce on October 24, 2025 about the Ambler Access Road?

Trilogy said AIDEA executed federal Right-of-Way permits restoring federal authorizations to advance the Ambler Access Project.

How long is the Ambler Access Road described by Trilogy Metals (TMQ)?

The Ambler Access Road is described as a proposed 211-mile industrial-use-only road.

What is the duration of the restored right-of-way for the Ambler Access Project (TMQ)?

The executed permits restore a 50-year right-of-way across federally managed lands.

What federal action preceded the permit execution for the Ambler Access Road (TMQ)?

A Presidential decision on Oct 6, 2025 under Section 1106 of ANILCA directed federal agencies to re-issue the authorizations.

What near-term steps will AIDEA take now that Ambler permits are in effect for TMQ?

AIDEA plans to proceed with road planning, including updating detailed engineering plans, programs and budgets next year.

How could the Ambler Access Road affect U.S. critical minerals according to Trilogy Metals (TMQ)?

Trilogy said the road would provide access to deposits that could strengthen domestic supplies of copper and other critical minerals.