GR Silver Mining Launches 20,000m Drilling Campaign to Expand San Marcial Silver Resources
Event summary
- GR Silver Mining commenced a 20,000-meter step-out drilling program at its San Marcial Area within the Plomosas Silver Project on February 18, 2026.
- The campaign aims to expand silver resources following successful 2025 drilling results, including high-grade intersections like SMS25-09 (75m at 260 g/t Ag).
- The company relocated its exploration office to Durango to address operational challenges in Sinaloa and ensure continued high operational standards.
- A mineral resource update and Preliminary Economic Assessment are planned for late 2026.
- The drilling program leverages a five-year surface drilling permit and will test extensions along strike and down plunge beyond current mineralization limits.
The big picture
GR Silver Mining's aggressive drilling campaign at San Marcial is a strategic move to capitalize on the success of previous high-grade intersections and expand its silver resources. The relocation of the exploration office to Durango reflects a broader trend in the mining industry to adapt to regional operational challenges while maintaining high standards. The company's focus on resource growth and economic assessments aligns with the increasing demand for silver and the need for cost-effective resource expansion in the mining sector.
What we're watching
- Resource Expansion
- Whether the 20,000-meter drilling campaign will successfully expand the silver-mineralized system by an additional 200 meters along strike and define boundaries to shallow depths of up to 400 meters below surface.
- Operational Efficiency
- How the relocation of the exploration office to Durango will mitigate risks and enhance operational efficiency in the face of security conditions in Sinaloa.
- Economic Viability
- The pace at which the data collected from the drilling program will be integrated into a Preliminary Economic Assessment by the end of 2026.
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