Bayhorse Silver Mobilizes for IP Geophysical Surveys of the Pegasus Porphyry Copper/Silver Prospect and the Bayhorse Silver Mine

Executive Summary

• Bayhorse Silver has begun mobilization for an IP geophysical survey at the Pegasus Porphyry Copper/Silver prospect and the Bayhorse Silver Mine, targeting drill‑target identification.
• High‑grade silver intercepts were reported from drill hole WM2 (average 1,104 g/t Ag over a 10.6 m zone; peak 1,486.74 g/t).
• The survey will extend across a 1.6 km anomaly with a vertical extent of at least 550 m, aiming to delineate conductive sulfide zones and potential porphyry copper mineralization.

Key Details

• Survey Scope: IP survey commences October 11 2025; covers low‑resistivity anomalies identified in the January 2024 airborne VTEM survey (1.6 km length, ≥550 m depth).
• Target Areas: West side of Bayhorse Mine and Pegasus prospect; eastern area already identified IP anomalies under mine access road.
• Assay Highlights – Drill Hole WM2:
• Interval 70‑75 ft (22‑33.5 m): 1,486.74 g/t Ag (47.8 oz/t) and 719 g/t Ag (23.12 oz/t); average 1,104 g/t Ag (35.46 oz/t) over 10.6 m zone.
• Interval 75‑80 ft: 770 g/t Ag (23.12 oz/t).
• Interval 80‑85 ft: 11.5 g/t Ag (0.37 oz/t); Cu 0.66 %, Sb 0.04 %, Zn >1.0 %.
• Additional intervals show decreasing grades but retain notable copper and zinc values.
• Metallurgical Context: 2020 test on a 200 kg sample produced a 5 kg Ore‑Sorter concentrate with head grade 985 g/t Ag, 1.16 % Cu, 1.87 % Zn; recoveries yielded 9,700 g/t Ag and 10 % Cu in concentrate.
• Mineralogy: Dominant mineralization is tetrahedrite with significant antimony content.
• Management Presence: CEO Graeme O'Neill, Director Christos Doulis, and Geologist/Director Mark Abrams will be onsite during the survey; O'Neill and Abrams to attend Idaho Mining Conference (Oct 27‑28 2025).
• Forward‑Looking Statements: Company cautions that no feasibility study has been completed; production decisions remain subject to economic, technical, and metallurgical risks.

Notable Quotes

“The IP survey will help us better define drill targets and understand the depth and continuity of our high‑grade silver‑copper zones,” – Graeme O'Neill, CEO.