Riverside Resources Expands Porphyry Copper Targets at Ariel Project, Sonora, Mexico

Riverside Resources reported expanded porphyry copper-gold targets at its 100 %-owned Ariel Project in Sonora, Mexico, including high-grade rock samples (e.g., up to ~320 g/t Ag and 5.4 % Pb) and alteration signatures typical of major copper systems. Work has refined multiple priority zones and integrated mapping, geochemistry and geophysics, positioning Ariel as a drill-ready, district-scale target near the La Caridad copper belt.

Silverco Mining Releases Remainder of 2025 Assays, Drilling 13.6m Grading 370 g/t AgEq, 12.0m Grading 236 g/t AgEq, 3.7m Grading 803 g/t AgEq, and 6.8m Grading 255 g/t AgEq

Silverco Mining reported the final 2025 drill results from its 15,000 m program at the Cusi Property in Chihuahua, Mexico, showing high-grade silver-equivalent intercepts (e.g., 370 g/t over 13.6 m, 803 g/t over 3.7 m, 255 g/t over 6.8 m). Results extend mineralization at San Miguel and San Juan and highlight further district potential. No production decision has been made yet.

Capitan Silver Intersects 2,451 g/t Silver Equivalent over 1.5 Metres, within a Wider Zone of 684 g/t Silver Equivalent over 9.1 Metres at the Cruz De Plata Project

Capitan Silver reported very high-grade drill results at its Cruz de Plata project in Durango, Mexico, including an intersection of 2,451 g/t silver-equivalent over 1.5 m within a broader zone of 684 g/t AgEq over 9.1 m, highlighting expanding high-grade silver mineralization and ongoing diamond drilling to test and extend targets along the Jesús María trend.

Mammoth Identifies Draw Point Locations for Future Small-Scale Gold-Silver Mineral Extraction and Pilot Leach Testing at its Tenoriba Gold-Silver Property, Mexico

Mammoth Resources has pinpointed several high-grade “draw point” locations at its 100%-owned Tenoriba gold-silver project in Chihuahua, Mexico for small-scale extraction and pilot heap leach testing. Using surface and drill data, geologists identified targets with attractive near-surface grades. Next steps include field checking and metallurgical tests to assess recoveries and potential tonnage.

Mithril Lidar Study Reveals 1.5 Km Trend And Historic Mines At La Dura Gold-Silver Project, Durango, Mexico

Mithril Silver & Gold’s LiDAR survey at the La Dura gold-silver project in Durango, Mexico uncovered 18 historic mine shafts, 44 adits and 134 pits and revealed a 1.5 km × 300 m structural trend with repeated workings, defining a high-priority drill target. The study will be combined with aerial magnetics and mapping to refine exploration planning across La Dura and nearby Copalquin.

Oroco Commences Phase 2 Drilling

Oroco has started Phase 2 diamond drilling at its Santo Tomás copper project in northwestern Mexico to upgrade mineral resource classifications in the South Zone. The work follows recent financing and includes infill/confirmation drilling and complementary pre-feasibility study programs.

Zacatecas Silver Announces Agreement to Acquire Multi-Asset Exploration Portfolio from Heliostar Metals, Significantly Expanding Mexican Asset Base

Zacatecas Silver Corp. agreed to buy a 100% interest in Heliostar Metals’ Cumaro, La Lola, Oso Negro and Ejutla exploration properties in Sonora and Oaxaca, Mexico, creating a larger district-scale exploration platform with near-term drill targets and longer-term strategic potential. Oso Negro is a priority, undrilled high-grade opportunity. The deal expands Zacatecas Silver’s Mexican asset base.

Mithril Appoints James Barr as Vice President, Exploration

Mithril Silver & Gold Limited has appointed James Barr, P.Geo., as its new Vice President, Exploration, bringing over 20 years of global experience, especially in Mexico’s high-grade epithermal gold-silver systems. He previously held senior exploration roles at SilverCrest Metals, contributing to growth at the Las Chispas Mine. His expertise supports Mithril’s Copalquin exploration strategy.

Endeavour Silver Announces Board and Management Updates

Endeavour Silver announced leadership changes: George Paspalas was appointed to the Board of Directors; long-time COO Don Gray will retire April 30, 2026; Luis Castro takes over as Chief Operating Officer, and Gord Bussieres was named Vice President, Projects to advance its development pipeline. The updates support company growth as it operates three underground mines and pursues major projects.

Heliostar Announces Option Agreement with Zacatecas Silver for Non-Core Properties

Heliostar Metals announced a binding option agreement with Zacatecas Silver Corp., granting Zacatecas the right to acquire 100% of four non-core Mexican exploration projects (Cumaro, La Lola, Oso Negro and Ejutla). Payments over three years total $450K cash and $750K in shares, with Heliostar retaining a 2% NSR royalty (1% repurchasable). The deal should close by March 31, 2026 pending conditions.

Sonoro Announces Updated Mineral Resource Estimate and Robust Updated PEA for Cerro Caliche Gold Project: After-Tax NPV of USD $224 Million and After-Tax IRR of 50%

Sonoro Gold Corp. reported an updated Mineral Resource Estimate and Preliminary Economic Assessment (PEA) for its Cerro Caliche gold project in Sonora, Mexico. The 10-year open-pit heap leach plan shows an after-tax NPV of USD 224 million and after-tax IRR of 50% at base metal prices, with strong production and payback metrics, underpinning project viability.

Empress Reports 2025 Year End Financial Results

Empress Royalty Corp. reported record 2025 results, with US $17.2 M in revenue, US $12.1 M gross profit, US $7.4 M net income (up sharply from US $1.0 M in 2024) and positive operating cash flow of US $3.7 M. The company expects 7,045–7,430 attributable GEOs in 2026, reflecting anticipated production growth and stable metals prices.

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Riverside Resources Expands Porphyry Copper Targets at Ariel Project, Sonora, Mexico

Riverside Resources reported expanded porphyry copper-gold targets at its 100 %-owned Ariel Project in Sonora, Mexico, including high-grade rock samples (e.g., up to ~320 g/t Ag and 5.4 % Pb) and alteration signatures typical of major copper systems. Work has refined multiple priority zones and integrated mapping, geochemistry and geophysics, positioning Ariel as a drill-ready, district-scale target near the La Caridad copper belt.

Silverco Mining Releases Remainder of 2025 Assays, Drilling 13.6m Grading 370 g/t AgEq, 12.0m Grading 236 g/t AgEq, 3.7m Grading 803 g/t AgEq, and 6.8m Grading 255 g/t AgEq

Silverco Mining reported the final 2025 drill results from its 15,000 m program at the Cusi Property in Chihuahua, Mexico, showing high-grade silver-equivalent intercepts (e.g., 370 g/t over 13.6 m, 803 g/t over 3.7 m, 255 g/t over 6.8 m). Results extend mineralization at San Miguel and San Juan and highlight further district potential. No production decision has been made yet.

Zacatecas Silver Announces Agreement to Acquire Multi-Asset Exploration Portfolio from Heliostar Metals, Significantly Expanding Mexican Asset Base

Zacatecas Silver Corp. agreed to buy a 100% interest in Heliostar Metals’ Cumaro, La Lola, Oso Negro and Ejutla exploration properties in Sonora and Oaxaca, Mexico, creating a larger district-scale exploration platform with near-term drill targets and longer-term strategic potential. Oso Negro is a priority, undrilled high-grade opportunity. The deal expands Zacatecas Silver’s Mexican asset base.

Mithril Appoints James Barr as Vice President, Exploration

Mithril Silver & Gold Limited has appointed James Barr, P.Geo., as its new Vice President, Exploration, bringing over 20 years of global experience, especially in Mexico’s high-grade epithermal gold-silver systems. He previously held senior exploration roles at SilverCrest Metals, contributing to growth at the Las Chispas Mine. His expertise supports Mithril’s Copalquin exploration strategy.

Endeavour Silver Announces Board and Management Updates

Endeavour Silver announced leadership changes: George Paspalas was appointed to the Board of Directors; long-time COO Don Gray will retire April 30, 2026; Luis Castro takes over as Chief Operating Officer, and Gord Bussieres was named Vice President, Projects to advance its development pipeline. The updates support company growth as it operates three underground mines and pursues major projects.

Our company BYLSA DRILLING provides drilling services in a variety of environments, ranging from typical exploration sites to extreme topographic conditions, always with the highest quality and safety standards.

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