Andean Silver Limited Unleashes New High‐Grade Vein Discoveries at Cerro Bayo – 111Moz Resource, 340% Growth & Near-Mill Drill Expansion Set to Accelerate Mining Restart
Monday, August 18, 2025
at
8:39 am
Andean Silver Limited has uncovered multiple high-grade silver‐gold veins at its Cerro Bayo Project in Chile, with assays reaching up to 7,344g/t silver and 85g/t gold. Drilling near the mill is imminent, promising accelerated resource growth and a potentially exciting near-term catalyst for the company.
Andean Silver Limited has reported a significant breakthrough at its Cerro Bayo silver‑gold project in Chile with the discovery of multiple stacked, high‐grade mineralised veins within a 1km corridor from its existing processing facility. The company’s detailed field mapping and channel sampling programs have revealed breakthrough assay results, including sawn channel samples registering up to 6,167g/t silver equivalent (with measured values of 4,453g/t silver and 20.7g/t gold) and rock chip results as high as 8,965g/t silver equivalent. The notable grades demonstrate the extensive potential for additional resource growth in an area historically recognized for robust production.
This new discovery, located immediately west of the previously mined Temer Vein, forms part of Andean Silver Limited’s broader strategy to expand resources by targeting high‑grade mineralisation near established infrastructure. The dataset includes various channel sample results—such as 1.3m at 2,661g/t silver equivalent and 0.7m at 2,082g/t silver equivalent—and these figures are supported by comparable rock chip findings. The technical reports further detail that the mineralised veins are hosted within favourable geological units intersecting major fault structures, a characteristic similar to adjacent deposits that have provided significant resources in the past.
The company, which has increased its overall Mineral Resources by over 340% in the last 18 months, is well‑funded and actively planning a drilling campaign for the current quarter to test at least six of the identified principal veins. With three rigs already in operation and the option to expand the drilling fleet further, Andean Silver Limited aims to accelerate exploration and eventually restart production at the Cerro Bayo processing plant, which is currently on warm idle status. This latest phase of detailed mapping and structural reinterpretation underscores the company’s confidence in unlocking further value from the vast 330km² mine district.
The technical details provided include calculations using a silver equivalent formula (AgEq = Ag + 83×Au) underpinned by a 90% metallurgical recovery estimate and gold and silver prices of US$1,900/oz and US$23/oz respectively. These robust technical indicators, combined with a rich historical database and extensive past mining activities in the region, offer solid ground for future resource expansion and project advancement.
Bullish sentiment centers on the strength of the assay results, the proximity of the new veins to pre‑existing infrastructure, and the company’s proven track record of resource growth. The experienced management team, combined with a well‑funded exploration program and clear structural controls comparable to adjacent high‑grade deposits, support an optimistic outlook regarding the project’s future. Conversely, bearish considerations include the inherent uncertainties of early exploration results, potential delays related to mine restart planning and internal studies, and the challenges that remain before the high‑grade potential can be fully translated into a sustained production profile. Overall, while challenges exist, the breakthrough discoveries add a compelling layer of optimism for Andean Silver Limited’s long‑term value proposition.