Pinnacle Silver and Gold Commences Underground Delineation Drilling Program at El Potrero

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VANCOUVER, BRITISH COLUMBIA, May 05, 2026 – TheNewswire - Pinnacle Silver and Gold Corp. (TSXV: PINN, OTCQB: PSGCF, Frankfurt: P9J) – ("Pinnacle" or the “Company") is pleased to announce that the rehabilitation and drill station preparation in the historic underground mines on the high-grade El Potrero gold-silver property in Durango, Mexico is sufficiently advanced to commence the underground delineation drilling program.   The program is starting at the Pinos Cuates mine, where ten drill stations have been prepared on the two levels of the mine – three stations, for 21 holes and 409 metres on the upper level, and seven stations, for 46 holes and 915 metres on the main level – for a total of 67 holes and 1,324 metres. As the drilling is conducted at Pinos Cuates, rehabilitation and drill station preparation will be completed at the Dos de Mayo mine, where 6 drill stations for 35 holes and 887 metres are planned.  At La Dura mine, 4 drill stations for 6 holes and 205 metres are planned.  The entire program currently entails 2,416 metres in 108 NQ-size holes, subject to modifications as it progresses. “The commencement of the underground drilling program at El Potrero is a major milestone as it will significantly de-risk the project on the way towards a formal production decision later this year,” stated Robert Archer, President and CEO of Pinnacle. “Our systematic underground channel sampling, consisting of almost 900 samples, gave us a good indication of the location and tenor of gold-silver mineralization, yielding individual assays up to 85.1 g/t Au and 520 g/t over 0.5 metres in the upper level of Pinos Cuates.  Now the close-spaced drilling will give us a better sense of the overall size, shape and grade of the mineralized zones. Surface drilling is being planned to immediately follow the underground program and will fill in gaps between the mines in addition to testing along strike on the Dos de Mayo vein and other mineralized veins such as El Capulin and La Estrella.  The combined results will then be used to generate an internal resource estimate that will, in turn, be used to develop a preliminary mine plan.”   Based upon the systematic channel sampling in the three historic mines, Pinnacle geologists have constructed 3D models for each to lay out the drill program.  A screenshot of the Pinos Cuates mo...

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