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Bayhorse Silver Underground Drilling Operations Update

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Bayhorse Silver (OTCQB:BHSIF) has completed underground drill preparations at the Bayhorse Silver Mine and will start a 2,000 m first-phase diamond drilling program on June 1.

The initial 13 holes will test CR-2 and easterly IP anomalies, targeting extensions of the 6.3 million-ounce NI 43-101 inferred silver resource.

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AI-generated analysis. Not financial advice.

Positive

  • 2,000 m first-phase underground diamond drilling starts June 1
  • At least 13 drill holes planned from new underground drill station
  • Targets lie beyond 6.3 Moz NI 43-101 inferred silver resource
  • High-grade MW2 interval up to 1,104 g/t silver over 1.5 m
  • Experienced external drill contractor and in-house geological team engaged

Negative

  • None.

Vancouver, British Columbia--(Newsfile Corp. - May 28, 2026) - Bayhorse Silver Inc. (TSXV: BHS) (OTCQB: BHSIF) (FSE: 7KXN) (the "Company" or "Bayhorse") is pleased to announce that underground drilling preparations have been completed at the Bayhorse Silver Mine, and the 2,000 m (6,562 ft) first phase diamond drilling will commence June 1.

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Figure 1. CR-2 IP anomaly indicating a 76 m (250 ft) width.

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Bayhorse CEO, Graeme O'Neill, who will be present at the Bayhorse Silver Mine at the commencement of drilling, comments "the first 6 drill holes will be drilled from the same underground drill station that was used for its 1,100 ft drill hole DD2024-01, that intersected 213 m (700 ft) of strong brecciation, (BHS2025-02) indicative of being formed by hot, high pressure gasses and fluids at depth."

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Figure 2. CR-2 drill sections indicating an up to 200 m (656 ft) vertical extent

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He further comments, "as the drill station will be used for a minimum 13 diamond holes, a significant amount of drill site preparation has been done, including a concrete pad and a sump. The first DD holes, DD2026-01 to DD2606-06 will be into the newly identified CR-2 IP target, that lies between 350 to 600 feet to the south of the newly prepared drill station. The 6 DD holes to the south, including the 7 DD holes planned to the east, are intended to confirm the presence of high grade silver bearing "tetrahedrite" (a tightly bound silver/antimony/copper/zinc/lead mineralization) that extend beyond the area of our National Instrument 43-101 Mineral Resource Estimate of 292,300 tons at a grade of 21.65 opt (673 g/t) for 6.3 million ounces of silver (Turner et al. 2018)."

The planned 7 drill holes into the easterly IP targets that lie between 60 and 121 m (200 and 400 ft) east of, and 43-60 m 140-196 ft) below the area of the 2018 inferred resource area are to extend the mineralized zone to the east. One of these targets was intersected by groundwater test well MW2 at a depth of between 22 m and 33.5 m (72 -110 ft) from surface with a 3 m (10 ft) intersection of 1.5 m (5 ft) grading an average of 1,104 g/t (35.46 opt) silver and 1.5 m (5 ft) averaging 770 g/t (23.12 opt) silver.

The 2nd stage of the drill program will target the CR-1 and CR-3 anomalies. CR-1 is shown in Figures 3, 8 and 9.

The Company has contracted out the drilling to a highly experienced drilling company and the Company has qualified personnel on staff to support the underground drill program. Geological analysis and sampling of the drill core will be undertaken by Director and Geologist Mark Abrams who will be supported by a junior geologist.

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Figure 3. MW-2 IP anomaly targets

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Figure 5. MW 2 IP anomaly drill section

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Figure 6. MW-2 deep anomalies

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Figure 8. CR-1 anomaly targets

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Figure 9. CR-1 targets drill section

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This News Release has been prepared on behalf of the Bayhorse Silver Inc. Board of Directors, which accepts full responsibility for its content. Mark Abrams, AIPG, a Qualified Person and Director of the Company has prepared, supervised the preparation of, or approved the technical content of this news release.

Graeme O'Neill, CEO
Toll Free: 866-399-6539, Office: 604-684-3394

About Bayhorse Silver Inc.

Bayhorse Silver Inc. is an exploration and production company with a 100% interest in the historic Bayhorse Silver Mine located in Oregon, USA with a National Instrument 43-101 inferred resource of 292,300 tons at a grade of 21.65 opt (673 g/t) for 6.3 million ounces of silver. (Turner et al. 2018) and the Pegasus Project, in Washington County, Idaho. The Bayhorse Silver Mine and the Pegasus Porphyry Copper Project are 44 km southwest of Hercules Metals' porphyry copper discovery. The Bayhorse Mine is a minimum environmental impact facility capable of processing at a mining rate of up to 200 tons/day that includes a state of the art 40 ton per hour Steinert Ore-Sorter that reduces waste rock entering the processing stream by up to 85%. The Company has established an up to 60 ton/day mill and standard flotation processing facility in nearby Payette County, Idaho, USA with an offtake agreement in place with Ocean Partners UK Limited. The Company has an experienced management and technical team with extensive mining expertise in both exploration and building mines.

FORWARD-LOOKING STATEMENTS:

This news release includes certain statements that may be deemed "forward-looking statements". In particular, this press release contains forward-looking information relating to, among other things, the drilling program. All statements in this news release, other than statements of historical facts, that address events or developments that the Company expects to occur, are forward-looking statements. Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects", "plans", "anticipates", "believes", "intends", "estimates", "projects", "potential" and similar expressions, or that events or conditions "will", "would", "may", "could" or "should" occur. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those in the forward-looking statements. In particular, these forward-looking statements are based on assumptions regarding: (i) stability in precious metals markets and silver prices; (ii) no further significant macroeconomic shocks or disruptions; (iii) continued market liquidity and investor access to capital; (iv) recovery of investor sentiment in the junior mining sector; and (v) timely receipt of required regulatory approvals. Factors that could cause the actual results to differ materially from those in forward-looking statements include: fluctuations in metal and commodity prices; continued availability of equity capital and financing; extreme market volatility and changes in investor sentiment; general economic, market, and business conditions; macroeconomic shocks and trade policy uncertainty; market liquidity constraints; timing and receipt of regulatory approvals (including from the TSX Venture Exchange); and risk that market recovery timing may differ materially from management expectations. Readers are cautioned not to place undue reliance on forward-looking statements. For a complete discussion of risk factors affecting the Company, please refer to the "Risks and Uncertainties" section of the Company's most recent Management's Discussion and Analysis available on SEDAR+ at www.sedarplus.ca. Investors are cautioned that any forward-looking statements are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking statements. Forward-looking statements are based on the beliefs, estimates and opinions of the Company's management on the date the statements are made. Except as required by applicable securities laws, the Company undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/299211

FAQ

What drilling program did Bayhorse Silver (BHSIF) announce on May 28, 2026?

Bayhorse Silver announced a 2,000 m first-phase underground diamond drilling program at the Bayhorse Silver Mine, beginning June 1. According to the company, initial drilling will test CR-2 and easterly IP anomalies near the existing underground drill station.

How many drill holes are planned in Bayhorse Silver's 2026 underground program at the Bayhorse Mine?

Bayhorse Silver plans a minimum of 13 underground diamond drill holes in the first stage of its 2026 program. According to the company, six holes target the CR-2 IP anomaly to the south and seven are planned into easterly IP targets.

How does the new Bayhorse Silver drilling relate to the 6.3 million-ounce NI 43-101 resource?

The new drilling is designed to test mineralization beyond the current NI 43-101 inferred resource of 6.3 million silver ounces. According to Bayhorse, CR-2 and easterly targets lie outside the 2018 292,300-tonne, 21.65 opt silver resource area.

What historical high-grade silver results support Bayhorse Silver's new drill targets?

Historical groundwater test well MW2 intersected 3 m of high-grade silver, including 1.5 m averaging 1,104 g/t and 1.5 m averaging 770 g/t. According to Bayhorse, these intersections lie within easterly IP targets being tested by the new drilling.

Who will operate and supervise Bayhorse Silver's 2026 underground drilling at Bayhorse Mine?

Bayhorse has contracted a highly experienced drilling company to operate the underground rigs. According to Bayhorse, geological analysis and sampling will be led by Director and Qualified Person Mark Abrams, supported by a junior geologist and company staff.

What are the planned second-stage drill targets in Bayhorse Silver's Bayhorse Mine program?

The second stage of Bayhorse Silver's underground drill program will target the CR-1 and CR-3 geophysical anomalies. According to the company, CR-1 is highlighted in several drill sections and figures associated with the Bayhorse Silver Mine exploration model.