GR Silver Mining WKN: A2PX5N ISIN: CA36258E1025 Forum: Aktien Thema: Hauptdiskussion

VANCOUVER, BC, May 21, 2026 /CNW/ - GR Silver Mining Ltd. ("GR Silver Mining" or the "Company") (TSXV: GRSL) (OTCQX: GRSLF) (FRANKFURT: GPE) is pleased to provide a corporate update to the market following the release of exceptional drill results on the wholly owned Plomosas Silver Project (the "Project") in Sinaloa, Mexico (see News Release dated May 19, 2026). In a separate, very positive milestone, the Company has received official notification from Mexico's Secretaría de Medio Ambiente y Recursos Naturales ("SEMARNAT") that production of a new Manifestación de Impacto Ambiental ("MIA"), an Environmental Impact Authorization, for the former Plomosas Mine will not be required. This decision is based on the existence of existing infrastructure, the Company's plans to rehabilitate and modernize the existing infrastructure, no change in land use, and no expected increase in environmental impact or risk. This allows GR Silver Mining to proceed with its plans for a Bulk Sampling Test Mining ("BSTM") program without having to produce a new MIA; only secondary permitting is required and is in process.