Silver Hammer and Stroud Resources update mineral resource estimate at Santo Domingo

Vancouver, British Columbia--(Newsfile Corp. - August 28, 2026) - Silver Hammer Mining Corp. (CSE: HAMR) (OTCID: HAMRF) (the " Company " or " Silver Hammer ") and Stroud Resources Ltd. (TSXV: SDR) ("Stroud") are pleased to announce an updated mineral resource estimate (" MRE ") for the Santo Domingo Silver-Gold Project (the " Project ") located in Jalisco State, Mexico. This MRE replaces Stroud's 2017 mineral resource estimate ( see Silver Hammer news release July 20, 2026).

A technical report prepared in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects (" NI 43-101 ") has been filed on SEDAR+ concurrently with the information circulars of Silver Hammer and Stroud relating to the proposed amalgamations (the " Amalgamations ") between Silver Hammer, Stroud and SilverMark Resources Inc. (" SilverMark ").

The information circulars of Silver Hammer and Stroud relating to the Amalgamations have been filed and are available under each company's profile on SEDAR+ at www.sedarplus.ca . The meetings of Silver Hammer shareholders and Stroud shareholders to consider and vote on the Amalgamations, as applicable, are each scheduled to be held on September 28, 2026. Shareholders of Silver Hammer and Stroud are encouraged to read the applicable information circular carefully and in its entirety. See "Meeting Details" below for additional information regarding the meetings.

Key Highlights:

The following is a summary of the MRE with more detailed information provided in Table 1:

Total Measured and Indicated mineral resources of 5.7 Mt at an average grade of 79 g/t Ag and 0.42 g/t Au, containing 14.3 Moz Ag and 76 koz Au, or collectively 20 Moz of silver equivalent (" AgEq ") (1) .

Total Inferred mineral resources of 3.9 Mt at an average grade of 66 g/t Ag and 0.31 g/t Au, containing 8.3 Moz Ag and 36 koz Au,