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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the month of October 2025
Commission File Number: 001-33153
ENDEAVOUR SILVER CORP.
(Translation of registrant's name into English)
#1130-609 Granville Street
Vancouver, British Columbia, Canada V7Y 1G5
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.
[ ] Form 20-F [ x ] Form 40-F "Exhibit 99.1 to this Form 6-K of Endeavour Silver Corp.
Incorporated by Reference
(the "Company") is hereby incorporated by reference as an exhibit to the Registration Statement on Form F-10 (File No. 333-287602) of the Company, as amended or supplemented."
SUBMITTED HEREWITH
| Exhibit | Description | |
| 99.1 | Material Change Report dated October 16, 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, thereunto duly authorized.
| Endeavour Silver Corp. | ||
| (Registrant) | ||
| Date: October 16, 2025 | By: | /s/ Daniel Dickson |
| Daniel Dickson | ||
| Title: | CEO | |
Form 51-102F3
MATERIAL CHANGE REPORT
Item 1. Name and Address of Reporting Issuer
Endeavour Silver Corp. (the "Company" or "Endeavour")
Suite 1130 - 609 Granville Street
Vancouver, British Columbia
V7Y 1G5
Item 2. Date of Material Change
October 16, 2025
Item 3. News Release
A news release describing the material change was disseminated by the Company on October 16, 2025 through GlobeNewswire and a copy was subsequently filed on SEDAR+.
Item 4. Summary of Material Change
On October 16, 2025, the Company announced that it had achieved commercial production at the Terronera mine ("Terronera") located in Jalisco state, Mexico, effective October 1, 2025.
Item 5. Full Description of Material Change
5.1 Full Description of Material Change
On October 16, 2025, the Company announced that it had achieved commercial production at Terronera, effective October 1, 2025.
The declaration of commercial production at Terronera came after a successful commissioning phase during which both mining and processing operations were ramped up to consistently exceed an average of 90% of the designed nameplate capacity of 2,000 tonnes per day, while also achieving at least 90% of the projected metal recoveries.
Terronera demonstrated remarkable progress, operating for 100 days since July 1, 2025, with eight days of downtime, and sustained strong metal recoveries since mid-August.
The Company forecasted throughput of approximately 360,000 tonnes over the next six months, with average grades estimated at 122 g/t silver and 2.52 g/t gold. Higher grade zones are scheduled to be accessed by mid-2026, which is expected to further enhance production. The Company also announced that its management plans to issue annualized 2026 production and cost guidance for the Terronera mine in January 2026.
5.2 Disclosure for Restructuring Transaction
Not applicable.
Item 6. Reliance on subsection 7.1(2) of National Instrument 51-102
Not applicable.
Item 7. Omitted Information
No information has been omitted on the basis that it is confidential information.
Item 8. Executive Officer
The name and business number of the executive officer of the Company who is knowledgeable of the material change and this report is:
Elizabeth Senez
Chief Financial Officer
Tel: 236-558-7168
Item 9. Date of Report
October 16, 2025