GR Silver Mining
TSXV:GRSL.VGR Silver Mining (TSXV:GRSL, OTCQB:GRSLF, Frankfurt:GPE) is a Canadian-based silver explorer and developer focused on unlocking value in the historic Rosario Mining District, Sinaloa, Mexico. Since going public in 2018, the Company has assembled a strategic land package totaling over 300 km², anchored by the Plomosas Project, a district-scale portfolio of advanced-stage and high-grade silver-gold assets. Advance and expand high-grade silver resources at the San Marcial Area and Plomosas Mine Area within our core 78 km2. Leverage existing infrastructure and permits to accelerate future development. Deliver sustainable value through exploration, discovery, and disciplined resource growth. Extensive global experience in exploration, project development, and mine operations.
Projects
Active mining projects and exploration sites
Plomosas Project
GR Silver Mining’s Plomosas Project is located on the southwestern edge of the Sierra Madre Occidental, a world renowned region for discovery, development and operation of silver mines in Mexico. The Project is in the historic Rosario Mining District, Sinaloa, Mexico and covers 78 km² of 100%-owned concessions and permitted historic underground mines. The Plomosas Project integrates the past producing Plomosas Mine and San Juan-La Colorada Areas, and the recently discovered extensive wide and shallow silver mineralization at the San Marcial Area. The existing infrastructure, combined with available permits, offers significant opportunities for future mine and operational developments, resource growth, and supports the Company’s growth in one of Mexico’s richest silver-gold-lead-zinc mining districts.
Plomosas Silver Project
Gold exploration and development project
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About GR Silver Mining
GR Silver Mining (TSXV: GRSL.V) is a mineral exploration company with projects spanning gold, silver with ground in Mexico.
The company holds 2 projects on file, at the early exploration stage.
1 financing is on record, totalling approximately $20.0M, most recently in December 2025.
20 press releases are tracked here, 4 of them financing-related, with the most recent dated Aug 18, 2026.
GR Silver Mining (TSXV:GRSL, OTCQB:GRSLF, Frankfurt:GPE) is a Canadian-based silver explorer and developer focused on unlocking value in the historic Rosario Mining District, Sinaloa, Mexico. Since going public in 2018, the Company has assembled a strategic land package totaling over 300 km², anchored by the Plomosas Project, a district-scale portfolio of advanced-stage and high-grade silver-gold assets. Advance and expand high-grade silver resources at the San Marcial Area and Plomosas Mine Area within our core 78 km2. Leverage existing infrastructure and permits to accelerate future development. Deliver sustainable value through exploration, discovery, and disciplined resource growth. Extensive global experience in exploration, project development, and mine operations.
Key facts
| Listing | TSXV: GRSL.V |
|---|---|
| Market capitalisation | $142.5M |
| Projects on file | 2 |
| Commodities | Gold, Silver |
| Jurisdictions | Mexico |
| Financings on record | 1 |
Projects
| Project | Commodity | Location | Stage |
|---|---|---|---|
| Plomosas Project | Gold | Mexico | Early exploration |
| Plomosas Silver Project | Silver | — | Exploration |
Financing history
| Announced | Type | Amount | Warrants |
|---|---|---|---|
| Dec 1, 2025 | Bought deal | $20.0M | Yes |
Warrants attached to past raises are future dilution at a fixed price. The Warrant Overhang Radar tracks the resulting overhang, and the Dilution Tracker shows how the share count has grown.
Recent news releases
- Aug 18, 2026GR Silver Adopts an Advance Notice Policy
- Jul 10, 2026GR Silver Reports Significant Drill Results at San Marcial: 21.9 m at 168 g/t Ag including 6.15 m at 447 g/t Ag in the SE Area
- Jun 2, 2026GR Silver Announces Executive Departure
- May 21, 2026GR Silver Provides a Corporate Update
- May 20, 2026GR Silver Announces a Celebration of Life for Founder Márcio Fonseca
- May 19, 2026GR Silver Reports Its Best Ever Drill Results at San Marcial: 45.1 m at 1,623 g/t Ag, Including 8.25 m at 8,579 g/t Ag, in Hole SMS26-04
- May 16, 2026Management Discussion and Analysis – 2025 Year End
- May 16, 2026Condensed Interim Financial Statements – 2024 & 2025 Year End
- Apr 22, 2026GR Silver Reports High-Grade Silver Results from the 20,000 m Step-Out Drilling Campaign at San Marcial: 15.6 m at 351 g/t Ag, including 2.5 m at 1,395 g/t Ag, in SMS26-03
- Mar 25, 2026GR Silver Mining Announces Loss of President, CEO, and Founder, Márcio Fonseca