Goldstorm Metals Geophysical Surveys Define New Exploration Drill Targets on the 100% Owned Crown Property, Located in the Golden Triangle of British Columbia

Vancouver, British Columbia--(Newsfile Corp. - December 15, 2025) - Goldstorm Metals Corp. (TSXV: GSTM) (FSE: B2U) ("Goldstorm" or the "Company") is pleased to announce an updated analysis of the results of the 2025 Geophysical Programs, including both the Induced Polarization (IP) and Magnetotelluric (MT) surveys, with incorporation of the geochemical surveys completed at its 100%-owned Crown Property. The Property covers approximately 16,000 hectares directly south of Seabridge Gold's KSM Project and Newmont's Brucejack Mine. Click to view: Crown location map.

Ken Konkin, P. Geo., President and CEO, comments "This year's IP and MT programs have significantly improved our understanding of the structural framework at the Crown Project – a key factor in interpreting the overall mineral potential as currently defined by surface mineralization along the Orion Spine. When combined with data from the geochemical program, the results provide important sub-surface information for planning future drill programs across multiple high-priority gold, copper and silver targets.

"The geophysical results suggest the presence of a large, intrusive body at depth, which may be the source of mineralized veins seen at surface. This reinforces both our current exploration model and the geological connection between the Crown Project, Treaty Creek (Tudor Gold) and the KSM (Seabridge Gold) porphyry systems. Together these systems form a 20-kilometer-long, north trending mineral belt hosting resources of over 100 million ounces gold, 20 billion pounds of copper and over 400 million ounces of silver. The combined survey results increase our confidence in the potential for discovering a very large intrusive-related copper-gold-silver porphyry system. The favourable geophysical and geochemical results define an area measuring 1.2 km in a north-south direction, and over a kilometer east to west. A silica-rich resistive ridge at surface, a chargeability anomaly beneath it, and a deep MT low below that are features of a classic porphyry architecture. These would represent the silicified lithocap, the sulfide shell, and the deep alteration/fluid system. That's exactly the kind of geometry you want to see when hunting a porphyry deposit.