Vancouver, British Columbia – June 10, 2025 – Summa Silver Corp. (“Summa” or the “Company”) (TSXV:SSVR) (OTCQX: SSVRF) (Frankfurt:48X) announced today a quarterly update with respect to the Company’s previously announced “at-the-market” equity program (the “ATM Program”) launched on October 4, 2024. The ATM Program allows the Company to issue and sell, from time to time, up to $5,000,000 of its common shares (“Common Shares”) from treasury to the public, at the Company’s discretion, pursuant to an equity distribution agreement (the “Equity Distribution Agreement”) between the Company and Research Capital Corporation (the “Agent”).

During the quarterly period ended May 31, 2025, the Company issued a total of 389,000 Common Shares on the TSX Venture Exchange at an average price of $0.3708 per share, providing gross proceeds of $144,245.85. Commissions of $3,606.15 were paid to the Agent in relation to these distributions.

For further details on the ATM Program, see the Company’s news release dated October 4, 2024.

About Summa Silver Corp
Summa Silver Corp is a junior mineral exploration company. The Company owns a 100% interest in the Hughes project located in central Nevada and in the Mogollon project located in southwestern New Mexico. The high-grade past-producing Belmont Mine, one of the most prolific silver producers in the United States between 1903 and 1929, is located on the Hughes project. The Mogollon project is the largest historic silver producer in New Mexico. Both projects have remained inactive since commercial production ceased and neither have seen modern exploration prior to the Company’s involvement.