Vancouver, British Columbia--(Newsfile Corp. - June 26, 2026) - GR Silver Mining (TSXV: GRSL) (OTCQX: GRSLF) (FSE: GPE) is advancing the San Marcial silver discovery in Mexico following the announcement of high-grade silver intercepts. Supported by a 20,000-metre drill program and upcoming resource and economic studies, the company is focused on expanding one of its most promising silver opportunities. GR Silver Mining Ltd. (TSXV: GRSL) (OTCQX: GRSLF) (FSE: GPE) https://grsilvermining.com/www.b-tv.com/post ...