Vancouver, British Columbia (Newsfile Corp. – June 16, 2025) - Defiance Silver Corp. (TSXV: DEF) (FSE: D4E) (WKN: A1JQW5) (“Defiance” or the “Company”) is pleased to announce that it has finalized a six-year agreement that grants the Company the rights to conduct surface exploration, drilling, and engineering studies in support of its Tepal Gold-Copper Project located in Michoacán, Mexico (see news release dated June 3, 2025). The agreement also enables the Company to collect essential data required for the submission of permit applications to advance the development of the project.

As consideration for these rights, the Company will make annual cash payments, indexed to the annual rate of inflation in Mexico, and issue common shares with a total annual value of US$40,000/year to the surface rights holder. Over the six-year term, the total number of shares issued will not exceed 1,400,000.

For the upcoming year, the Company will issue 201,452 common shares at a deemed price of C$0.27 per share to the counterparty. This remains subject to approval of the TSX Venture Exchange.

On behalf of Defiance Silver Corp.

“Chris Wright”

CEO and Chairman of the Board