Guanajuato Silver Files Technical Report for Bolanitos Mine

Guanajuato Silver Company Ltd. has announced the filing of a NI 43-101 Technical Report for its Bolanitos Mine in Guanajuato, Mexico. Compiled by Hard Rock Consulting, this report, effective March 19, 2026, confirms previous company disclosures. The report outlines a total of 388.7 kt in proven and probable reserves, with average grades of 178 g/t AgEq. Additional information on the Bolanitos project can be accessed via SEDAR+.

The mineral reserve estimates include measured, indicated, and inferred categories. Measured and indicated resources total 983,000 tonnes, while inferred resources stand at 1,021,000 tonnes. The report also denotes a 134-140 g/t AgEq cut-off for different production areas. Economic assumptions include $30 per ounce of silver and $2,550 per ounce of gold.