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GR Silver Mining Drills Two New Silver and Gold Mineralized Zones at San Marcial. SMS25-10A Returns 9 m at 374 g/t Ag including 1.0 m at 1,542 g/t Ag; and 33 m at 1.44 g/t Au including 1.2 m at 32.1 g/t Au

Newswire.ca - Wed Sep 24, 2025

VANCOUVER, BC, Sept. 24, 2025 /CNW/ - GR Silver Mining Ltd. ("GR Silver Mining" or the "Company") (TSXV: GRSL) (OTCQB: GRSLF) (FRANKFURT: GPE) is pleased to announce results from drill hole SMS25-10A, located in the Parallel Breccia Target, approximately 150 metres (m) to the southwest of the current San Marcial Resource Area ("Resource Area") (Figure 1), in the Plomosas Project. The step-out drill hole intersected 9 m at 374 g/t silver (Ag), with anomalous values of copper (0.3% Cu) and tungsten (0.59% W), including a high-grade zone of 1 m at 1,542 g/t Ag, 1.4% Cu, and 0.62% W (Table 1). This marks the first identification of this specific mineralogical-chemical assemblage at San Marcial, supporting current exploration models that link the wide silver mineralization to an intrusive porphyry-style geological setting.

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