GR Silver Mining Ltd.

GR Silver Mining Ltd. is a Canadian-based mineral exploration and development company focused on silver-primary deposits in Mexico. The company's mission is to unlock value in the historic Rosario Mining District in Sinaloa, Mexico, by advancing and expanding high-grade silver resources, leveraging existing infrastructure, and delivering sustainable value through exploration, discovery, and disciplined resource growth. Its headquarters are located in Vancouver, British Columbia, Canada.

The company's key assets include the 100%-owned Plomosas Project, situated in the Rosario Mining District, Sinaloa, Mexico. This project encompasses approximately 24,000 hectares and features two main areas of focus: the San Marcial silver discovery and the historic Plomosas Mine, both containing NI 43-101 compliant mineral resources. GR Silver Mining explores for polymetallic mineralization, with significant credits from gold, lead, zinc, and copper, particularly within the Plomosas Mine Area, while the San Marcial area is characterized as a near-surface, silver-dominant property.

Eric Zaunscherb currently serves as the Executive Chair, Interim President & Interim CEO, having been appointed in March 2026 following the passing of founder Márcio Fonseca. As of May 2026, GR Silver Mining is actively engaged in a 20,000-meter drill program at its San Marcial project, aiming to expand its 134 million ounces of silver equivalent (AgEq) resource. The company is also planning a bulk sample test mining program at the fully permitted Plomosas underground mine, with a pilot plant under assessment for early 2026. GR Silver Mining completed a C$28.8 million financing in December 2025, positioning it as a fully financed and debt-free entity with sufficient capital for its ongoing exploration and development initiatives.