SD 1 ea0293675-sd_highlander.htm SPECIALIZED DISCLOSURE REPORT

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

Highlander Silver Corp.

(Exact name of registrant as specified in its charter)

British Columbia, Canada		001-43170		Not Applicable
(State or other jurisdiction of incorporation or organization)		(Commission File Number)		(IRS Employer Identification No.)

2500 – 100 King Street West Toronto, Ontario, Canada		M5X 1A9
(Address of principal executive offices)		(Zip Code)

Tom Ladner
(604) 687-1717

(Name and telephone number, including area code, of person to contact in connection with this report)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

☐ Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

☒ Rule 13q-1 under the Securities Exchange Act (17 CFR 240.13q-1) for the fiscal year ended December 31, 2025.

SECTION 1 – Conflict Minerals Disclosure

Item 1.01 - Conflict Minerals Disclosure and Report

Not applicable.

Item 1.02 - Exhibit

Not applicable.

SECTION 2 – RESOURCE EXTRACTION ISSUER DISCLOSURE

Item 2.01 Resource Extraction Issuer Disclosure and Report

Highlander Silver Corp. (“Highlander”), a British Columbia corporation, is subject to Canada’s Extractive Sector Transparency Measures Act (“ESTMA”). Highlander is relying on the alternative reporting provision of Item 2.01 and providing its ESTMA report for the year ended December 31, 2025, to satisfy the requirements of Item 2.01. Highlander’s ESTMA report is available on Highlander’s website at https://highlandersilver.com/investors/financials-reports/ or on the Government of Canada’s website at https://natural-resources.canada.ca/minerals-mining/services-mining-industry/extractive-sector-transparency/links-estma-reports. The payment disclosure required by Form SD is included as Exhibit 2.01 to this Form SD.

SECTION 3 – EXHIBITS

Item 3.01. Exhibits

The following exhibit is filed as part of this report.

Exhibit Number		Description
2.01		Extractive Sector Transparency Measures Act – Annual Report for Highlander Silver Corp. for the year ended December 31, 2025

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.

Highlander Silver Corp.

By:	/s/ Tom Ladner	June 4, 2026
	Tom Ladner	(Date)
	General Counsel