Category: Exploration and Development

GR Silver Mining Ltd. has resumed field work and drilling at the Plomosas Silver Project in Sinaloa, Mexico, after a temporary pause due to regional security concerns. The company is optimistic about expanding the San Marcial resource, with previous trench results showing high-grade silver. The focus is on step-out drilling and surface investigations, while prioritizing safety and assessing a potential bulk sampling program.

Mithril Silver and Gold Limited announced high-grade gold and silver drill results at Target 2 (Las Brujas) in Mexico’s Copalquin district. Hole T2DH25-006 yielded 11.5m at 8.61 g/t gold and 57.6 g/t silver. Exploration advances across multiple targets, with new discoveries at El Peru and El Apomal, confirming the district’s large-scale mineral potential.

Heliostar Metals Ltd. announced high-grade gold results from a 16,211-meter drilling program at La Colorada Mine, Sonora, Mexico, including 56.6m at 2.88 g/t and 23.2m at 14.4 g/t gold. The program aims to expand reserves for a mid-2025 technical report. Drilling will now focus on stockpiles and high-grade veins to enhance production and economics.

Vizsla Silver Corp. has agreed to acquire the Santa Fe Project, a 12,229 Ha site with a 350 tpd mill, south of its Panuco Project in Mexico. The deal includes cash and share payments for production and exploration concessions. The Santa Fe mine has processed 370,366 tonnes of ore since 2020, with significant exploration potential. The acquisition aims to boost Vizsla’s production profile.

Mako Mining Corp. reported high-grade gold and silver results from its RC drill program at Las Conchitas, Nicaragua. Highlights include 117.98 g/t Au over 2.0 m at Cruz Grande/El Limon, 29.57 g/t Au over 3.0 m at Mina Francisco, and 24.95 g/t Au over 4.0 m at Bayacun. The program aims to expand open-pit and underground mining potential.

Luca Mining Corp. announced drill results from seven underground diamond drill holes at its Campo Morado mine in Mexico, part of a 5,000m Phase One exploration. Drillhole CMUG-25-012 discovered a new ore zone with 3.8m of 12.54 g/t AuEq. The program targets near-mine resource expansion, with surface drilling underway to test Reforma and El Rey deposits.

Guanajuato Silver Company Ltd. reported exploration progress at its El Cubo and San Ignacio mines in Guanajuato, Mexico. At El Cubo, 971.8 meters of drilling in Q1 2025 confirmed the San Luis vein’s continuity, with 6,500 meters planned for 2025 targeting multiple veins. At San Ignacio, a geophysical study west of the Santo Nino block will guide future drilling.

Tocvan Ventures Corp. announced initial RC drill results from its Gran Pilar Gold-Silver Project in Sonora, Mexico. Drillhole JES-25-114 returned 41.2m of 1.0 g/t Au and 10 g/t Ag, including 6.1m of 5.4 g/t Au and 39 g/t Ag. The high-grade zone coincides with a 250m vertical geophysical anomaly. Results are pending for seven additional holes.

Endeavour Silver Corp. has started wet commissioning at its Terronera Project in Jalisco, Mexico, a key step toward full-scale production. This phase involves testing equipment and systems with water and slurry, following successful dry commissioning. Initial results from the concentrate filter align with design expectations. The company aims to ramp up to full throughput and will provide operational guidance as progress continues. The stock price for EXK is currently $5.47 USD.

Riverside Resources Inc. finalized an option agreement with Questcorp Mining Inc. for the La Union Project in Sonora, Mexico, on May 5, 2025. Questcorp can acquire 100% interest by paying C$100,000, issuing 19.9% shares, and spending C$5.5M on exploration over four years. Riverside retains a 2.5% royalty and will operate the exploration program.