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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): June 9, 2026

_______________________

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 June 9, 2026, Trilogy Metals Inc. (the “Company”) issued a press release announcing that field crews have mobilized to site and seasonal field operations are underway for the 2026 summer exploration program at the Upper Kobuk Mineral Projects, advanced by the Company’s joint venture, Ambler Metals LLC (“Ambler Metals”) and that Ambler Metals has appointed a new President. 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 9.01 Financial Statements and Exhibits

(d) Exhibits

Exhibit Number | Description
99.1 | Press release dated June 9, 2026
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: June 9, 2026 | By: | /s/ Elaine Sanders
|  | Elaine Sanders, Chief Financial Officer