VANCOUVER, BC, May 4, 2023 /CNW/ – GR Silver Mining Ltd. (“GR Silver Mining” or the “Company”) (TSXV: GRSL) (OTCQB: GRSLF) (FSE: GPE) – is pleased to announce that the Company has filed on SEDAR an independent technical report (“the Report”) prepared in accordance with National Instrument 43-101 – Standards of Disclosure of Mineral Projects (“NI 43- 101”) supporting the updated resource estimate for the Plomosas Project, previously reported in the Company’s news release dated March 20, 2023. This News Release is filed in accordance with Section 4.2, Sub Section (5)(b) reconciling differences in the silver equivalent (“Ag Eq”) estimation related to the San Marcial Area.