MAG Silver Corp. specializes in the discovery and advancement of properties for... MAG Silver Corp. specializes in the discovery and advancement of properties for extracting precious metals. The firm's exploration activities target reserves of silver, gold, lead, and zinc. Crucially, it possesses a 44% ownership share in the Juanicipio project, located within the Fresnillo District of Mexico's Zacatecas State. The enterprise is headquartered in Vancouver, Canada.