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

Vancouver, British Columbia--(Newsfile Corp. - October 7, 2025) - Bayhorse Silver Inc, (TSXV: BHS) (OTCQB: BHSIF) (FSE: 7KXN) (the "Company" or "Bayhorse") has begun mobilization to its Pegasus Porphyry Copper/Silver prospect and its silver-copper-antimony rich Bayhorse Silver Mine in Oregon, USA for an IP survey to be conducted by SJ Geophysics, commencing October 11, 2025.

The Pegasus IP geophysical survey will cover the large low-resistivity anomalies identified in the Company's airborne VTEM survey conducted in January 2024 to better identify drill targets and depths into the anomalies. The anomalous area extends over 1.6 km in length and the VTEM results indicate a vertical extent of at least 550 m (1804 feet). The survey should discriminate between rocks that conduct electrical current and those that don't and can also measure the chargeability of a rock which is its ability to hold a charge. Rocks with common but disconnected zones of sulfides have the largest chargeability responses and massive sulphides and copper porphyry are ideal chargeability targets.

The Bayhorse IP survey will extend the area of the original survey to cover the west side of the Bayhorse Mine. The first survey under the eastern area identified a number of IP anomalies under the Bayhorse Mine access road. where downhole silver assay results from drill hole WM2 were intersected, at an interval depth of from 22 to 33.5 m (72 ft to 110 ft) from surface. The most significant silver assay reported (BHS2025-12) was for two samples from the first 1.5 m (5f ft) of the intersection - 1,486.74 g/t (47.8 opt) and 719 g/t (23.12 opt) for an average 1104 g/t (35.46 opt) within a 10.6 meters (35 ft) zone of silver mineralization. A second 1.5m (5 ft) silver intersection within the mineralized zone assayed 770 g/t (23.12 opt), with the 3 m (10 ft) intersection averaging 937 g/t (30.12 oz/t) silver. (full assay results are shown in table, below)

The Bayhorse exploration model holds that the silver-copper-antimony rich mineralization at the Bayhorse Silver Mine extends across to the adjacent Pegasus porphyry copper prospect and could have its source in an underlying shallow pluton(s) that may host porphyry copper mineralization similar to what Hercules Metals has reported 40 km north of the Bayhorse Silver Mine.

Figure 1. Bayhorse Pegasus IP survey areas

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