Drill Program Identifies Mineralised Structures At Tonopah West

VANCOUVER – Blackrock Silver Corp. reported on the eastern expansion drill program at the Tonopah West project located in Nye and Esmeralda Counties, Nevada. The expansion was a follow up to the Company’s Scout drilling program completed at Tonopah West which shows additional upside for the shallow southern portion of the Denver-Paymaster and Bermuda-Merten vein groups (DPB South) resource area (the “M&I Conversion Area”) to expand the resource area 1,200 metres in an easterly direction (the “Eastern Expansion Zone”).
The Company commenced the Eastern Expansion Program in July 2025 within the Eastern Expansion Zone, utilizing reverse circulation (RC) drilling with RC pre-collars to establish initial holes, which were then deepened using diamond core drilling (core tails) for more detailed geological analysis. The Program drilled a total of 6,798 metres (22,896 feet) in twenty-four drillholes, however, only 22 drillholes were completed, as two pre-collar holes were not usable for core tails. Of the 22 completed drillholes, three were core holes completed from surface.
Andrew Pollard, President and CEO, stated, “Whereas we set out to target a single east-west mineralized structure, drilling from our Eastern Expansion Program has defined at least three distinct, parallel mineralized zones oriented northwest. These structures appear to be splays off the Pittsburgh-Monarch fault system. Each of these zones has intersected shallow, high-grade, and thick mineralization, indicating significant potential for further expansion in the area. Additionally, drilling in the M&I Conversion Area at DPB South has successfully connected previously isolated intercepts, confirming the presence of north-south trending structures and suggesting additional tonnage potential. Work on our upcoming mineral resource estimate and preliminary economic assessment is now underway and on track for a targeted completion date in February 2026. These will incorporate data from both our Northwest and Eastern Expansion drill programs.”