GR Silver Mining Ltd. is a Canadian Mexico-focused junior mineral exploration company. The Company is engaged in silver-gold resource expansion on its 100%-owned assets, located on the eastern edge of the Rosario Mining District, in the southeast of Sinaloa State, Mexico. The San Marcial Area is a 1,250-hectare property, which is located approximately 98 km southeast of Mazatlan, in the state of Sinaloa, and five km south of the Company’s Plomosas Mine Area. The Company controls 100% of two past producer precious metal underground and open pit mines, within the Plomosas Project, which includes the integrated San Marcial Area and Plomosas Mine. The Company holds 734 square kilometers (km2) of concessions containing various structural corridors totaling over 75 kilometers (km) in strike length. The Company owns a 100% interest in the La Trinidad Property located in the Rosario Mining District, Sinaloa, Mexico.