Southern Silver Intersects 6.3 Metres Averaging 874g/t AgEq at Cerro Las Minitas Project in Durango, Mexico
Southern Silver consolidates high-grade Puro Corazon as it marches toward a transformational PEA update

The most recent news (March 19, 2026) reports final assay results from the 2025-26 drill program at the newly acquired Puro Corazon claim, part of the flagship Cerro Las Minitas project. Key highlights include 6.3 metres of 874g/t AgEq and 3.5 metres of 484g/t AgEq. These results confirm bonanza-grade silver mineralization in a hangingwall zone and extend known mineralization to depths exceeding 500 metres. The company has now completed the drilling phase and is transitioning to updating the Mineral Resource Estimate (MRE) and the Preliminary Economic Assessment (PEA).
The news is Routine - Positive. While the grades are high (874g/t AgEq), they are consistent with the "Bonanza-grade" results reported throughout January and February 2026 (e.g., 1,115g/t AgEq on Dec 1, 2025, and 781g/t AgEq on Feb 9, 2026). - Consistency: The results validate the acquisition of the Puro Corazon claim, proving it contains the high-grade "sweet spot" of the Skarn Front deposit. - De-risking: Testing mineralization to 500m depth adds significant confidence to the volume of the resource. - Economic Implications: The integration of these high-grade, near-surface tonnes into the upcoming PEA is expected to significantly improve the project's Internal Rate of Return (IRR) and Net Present Value (NPV) compared to the July 2024 study, which had to model around this then-unowned claim.
Southern Silver’s flagship is the Cerro Las Minitas (CLM) project in Durango, Mexico. It is one of the largest undeveloped silver-lead-zinc deposits in the world. The project is characterized by skarn and carbonate replacement deposits (CRD) surrounding a central intrusion. The recent acquisition of the Puro Corazon claim (9 hectares) was a strategic masterstroke, as it sat directly atop the high-grade core of the Skarn Front zone.