UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_______________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 6, 2025

_______________________

Trilogy Metals Inc.

(Exact name of registrant as specified in its charter)

_______________________

British Columbia	001-35447	98-1006991
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification Number)

Suite 901, 510 Burrard Street
Vancouver, British Columbia
Canada, V6C 3A8

(Address of principal executive offices, including zip code)

(604) 638-8088

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2 below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.24d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.23e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Shares

TMQ

NYSE American

Toronto Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01

Regulation FD Disclosure

On October 6, 2025, Trilogy Metals Inc. (the “Company”) issued a press release announcing President Donald J. Trump’s decision (the “Presidential Decision”) under Section 1106 of the Alaska National Interest Lands Conservation Act (“ANILCA”), directing Federal agencies with jurisdiction to promptly issue authorizations necessary for the establishment of the Ambler Access Project (or “Ambler Road”), titled “Trilogy Metals Applauds President Trump’s Decision to Grant Permits for the Ambler Access Project to Enable the Development of Critical Minerals in Alaska”. The press release is attached hereto as Exhibit 99.1.

The information contained in the press release attached hereto is being furnished and shall not be deemed filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 8.01

Other Events.

On October 6, 2025, President Trump issued the Presidential Decision under Section 1106 of ANILCA, directing Federal agencies with jurisdiction to promptly issue authorizations necessary for the establishment of the Ambler Road. The Presidential Decision approved an appeal by the Alaska Industrial Development and Export Authority (“AIDEA”), a public corporation of the State of Alaska, to reverse the Biden Administration’s decision in June 2024 to select the “No Action Alternative” and terminate the right-of-way (“ROW”) grant for the Ambler Road issued on January 5, 2021.

In Section 1106 of ANILCA, Congress created a mechanism for appealing directly to the President from a denial of transportation systems in Alaska, like the Ambler Road. ANILCA was passed into legislation by Congress in 1980 to balance the need to protect Alaska's natural ecosystems and landscapes with the needs of its residents, particularly those who rely on the land for their livelihoods. Congress required that a mandatory access right “shall be granted” to the Ambler Mining District. Section 1106 allowed AIDEA to directly appeal to President Trump regarding the Biden Administration’s denial of the Ambler Road.

The Presidential Decision also directs the Federal agencies with jurisdiction to issue the permits described below no later than 30 days after the date of the Presidential Decision (not its publication in the Federal Register). Agencies are permitted to make only ministerial revisions to their authorizations as necessary to reflect changed circumstances such as termination of the Programmatic Agreement (“PA”) (discussed more below), conveyances of Bureau of Land Management (“BLM”)-managed lands out of Federal ownership, or other similar circumstances. Otherwise, agencies shall include the same terms and conditions in their reissued authorizations that they included in their authorizations issued on January 5, 2021.

The BLM shall reissue BLM Right-of-Way Grant, No. F-97112, originally issued January 5, 2021. Its 50-year term shall begin on the date it is reissued. And the BLM shall, in accordance with applicable law and the 2020 Joint Record of Decision (“2020 JROD”), grant any other authorizations necessary for any of the components and phases of the Ambler Road on Federal lands managed by the BLM.

The National Park Service (“NPS”) shall remove the suspension of ROW permit GAAR-21-001 and reissue it in the same form. Its 50-year term shall begin on the date it is reissued. And the NPS shall, in accordance with applicable law and the 2020 JROD by the Secretary of the Interior and the Secretary of Transportation, grant any other authorizations necessary for any of the components and phases of the Ambler Road on Federal lands managed by the NPS.

The U.S. Army Corps of Engineers (“Corps”) shall reinstate the suspended Clean Water Act (“CWA”) Section 404 permit POA-2013-00396. Its 15-year term shall begin on the date it is reissued.

The Presidential Decision does not preclude the Corps from later reevaluating its jurisdictional determination based on the Supreme Court’s decision in Sackett v. EPA, 598 U.S. 651 (2023), and the Environmental Protection Agency’s (“EPA”) follow-up guidance to assess the appropriate jurisdictional limits on the permit, including by identifying all traditionally navigable and relatively permanent bodies of surface water and potentially, if appropriate, revising the permit.

The Corps shall reinstate the suspended Rivers and Harbors Act (“RHA”) Section 10 permit POA-2013-00396. Its 15-year term shall begin on the date it is reissued.

The U.S. Coast Guard (“USCG”) jurisdictional and pre-approvals are reaffirmed by the Presidential Decision. No further USCG approvals shall be required.

Because the BLM’s 2024 Record of Decision canceled the ROW (that is, the undertaking for purposes of the National Historic Preservation Act (“NHPA”)) and terminated the PA, the President has also directed the BLM and the other Federal agencies to replace any authorization provisions referring to the terminated PA with the following provisions to address NHPA issues:

Adverse effects to historic properties from project construction and operation activities that are within Federal jurisdiction shall be avoided or minimized to the extent prudent and feasible. To the extent that avoiding adverse effects is not prudent or feasible, AIDEA shall implement standard treatment methods identified in the 2021 CRMP for the project to resolve such adverse effects

In the event that historic resources, archaeological resources, or human remains are encountered during project construction, the Inadvertent Discovery Plans developed for the project shall be implemented.

Item 9.01

Financial Statements and Exhibits

(d) Exhibits

Exhibit Number	Description
99.1	Press release, dated October 6, 2025 relating to the Presidential Decision
104	Cover Page Interactive Data File, formatted in Inline Extensible Business Reporting Language (iXBRL)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	TRILOGY METALS INC.

Dated: October 6, 2025	By:	/s/ Elaine Sanders
		Elaine Sanders, Chief Financial Officer

Exhibit 99.1

Trilogy Metals Applauds President Trump's Decision to Grant Permits for the Ambler Access Project to Enable the Development of Critical Minerals in Alaska

This news release constitutes a "designated news release" for the purposes of Trilogy Metals Inc.'s prospectus supplement dated May 27, 2025, to its short form base shelf prospectus dated April 14, 2025.

NYSE American / TSX
Symbol: TMQ

VANCOUVER, BC, Oct. 6, 2025 /CNW/ - Trilogy Metals Inc. (NYSE American: TMQ) (TSX: TMQ) ("Trilogy Metals", "Trilogy" or "the Company") is pleased to announce that, on October 6, 2025, President Trump issued a decision under Section 1106 of the Alaska National Interest Lands Conservation Act ("ANILCA"), granting the permits for the Ambler Access Project (or "Ambler Road"). The decision approved an appeal by the Alaska Industrial Development and Export Authority ("AIDEA"), a public corporation of the State of Alaska, to reverse the Biden Administration's decision in June 2024 to select the "No Action Alternative" and terminate the previously issued right-of-way grant for the Ambler Road. President Trump directed relevant agencies to promptly reinstate, grant and finalize all necessary permits and authorizations with terms necessary to assure adequate and feasible access for economic and other purposes, such as mining and use of the road for industrial and commercial access.

In Section 1106 of ANILCA, Congress created a unique mechanism for appealing directly to the President from a denial of transportation systems in Alaska like the Ambler Road. ANILCA was passed into legislation by Congress in 1980 to balance the need to protect Alaska's natural ecosystems and landscapes with the needs of its residents, particularly those who rely on the land for their livelihoods. Congress required that a mandatory access right "shall be granted" to the Ambler Mining District. Section 1106 allowed AIDEA to directly appeal to President Trump regarding the Biden Administration's denial of the Ambler Road. That denial was a decision that would block access to leased State of Alaska mining claims, federally patented claims, and the entire Ambler Mining District.

Unlocking One of America's Richest Mineral Districts

The Ambler Road is a proposed 211-mile, industrial-use-only road from the Upper Kobuk Mineral Projects 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, including the Company's Arctic and Bornite deposits.

President Trump's decision reflects a renewed federal commitment to responsible resource development in Alaska and highlights the Ambler Road as critical infrastructure under federal policy, designed to enable secure, domestic supply chains for vital minerals including copper, cobalt, zinc and lead – resources key to energy infrastructure, defense technologies, and American manufacturing.

Commitment to Protecting Local Communities and Subsistence Resources

Designed to be a private industrial road, the Ambler Road will not be open to the public in order to safeguard subsistence activities. The project design includes protections for caribou migration routes, fish habitats, and other environmental considerations, along with measures to limit community impacts. The road is expected to bring long-term economic benefits to Alaska Native communities located nearby through direct employment and contracting opportunities, and to the broader state economy through increased investment in the region, while adhering to strict environmental and subsistence protections as outlined in the project's Environmental Impact Statement.

Partnership with Alaska

Trilogy acknowledges the steadfast efforts of AIDEA and Alaska Governor Mike Dunleavy in advancing this presidential appeal. The actions from President Trump and the Department of Interior reflect the renewed federal commitment to responsible resource development in Alaska; and acknowledge the importance of balancing economic opportunity with environmental and cultural protections. The Department of the Interior, AIDEA and the State of Alaska have all played instrumental roles in advancing this presidential appeal, demonstrating broad support for the Ambler Road project.

"This landmark decision is a turning point for Trilogy and for the future of domestic critical mineral development in the United States," said Tony Giardini, President and CEO of Trilogy Metals. "The Ambler Road is not just a pathway to economic growth in Alaska – it's a strategic asset for the United States. With the backing of the President and federal agencies, we are confident this project will move forward in a way that respects both the land and the people who call it home."

The Ambler Road enables Trilogy and its partners to move forward on the development of world-class mining projects such as the Arctic and Bornite deposits – projects with robust economics, long mine lives, and potential to deliver strong returns for shareholders. The Company anticipates providing an update on advancing engineering, baseline environmental work and community engagement prior to the end of the year.

About Trilogy Metals

Trilogy Metals Inc. is a metal exploration and development company holding a 50 percent interest in Ambler Metals LLC, which has a 100 percent interest in the Upper Kobuk Mineral Projects ("UKMP") 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 President Trump's decision 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, planned activities at the UKMP, perceived merit of the properties and the Ambler Road, 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 the outcome of pending litigation, success of exploration activities, permitting timelines, requirements for additional capital, government regulation of mining operations, environmental risks, prices for energy inputs, labour, materials, supplies and services, uncertainties involved in the interpretation of drilling results and geological tests, unexpected cost increases 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-applauds-president-trumps-decision-to-grant-permits-for-the-ambler-access-project-to-enable-the-development-of-critical-minerals-in-alaska-302576354.html

SOURCE Trilogy Metals Inc.

View original content: http://www.newswire.ca/en/releases/archive/October2025/06/c6382.html

%CIK: 0001543418

For further information: Company Contacts: Tony Giardini, President & Chief Executive Officer; Elaine Sanders, Vice President & Chief Financial Officer, Phone: 604-638-8088

CO: Trilogy Metals Inc.

CNW 19:54e 06-OCT-25