Andean Silver (ASX:ASL) Expands Juanita Prospect Drilling at Cerro Bayo

Sonal Goyal

30 October 2026 11:39 AM AEDT

Andean Silver (ASX:ASL) Expands Juanita Prospect Drilling at Cerro Bayo

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Key Highlights

The number of drilling rigs at Cerro Bayo increased to six during the quarter.
The Juanita Prospect, a breccia-hosted silver-gold trend about 2 kilometres long, was identified outside the current resource.
Surface assays at Juanita returned up to 62,663 g/t silver equivalent.
The current Mineral Resource is 136 million ounces of silver equivalent.

Andean Silver Limited (ASX:ASL) published its September 2026 quarterly activities report on 30 October 2026. The report covers exploration at the Cerro Bayo project in Chile, where the company is running development studies alongside an expanded drilling campaign. It also reports the identification of the Juanita Prospect, a new target outside the current mineral resource.

Drilling Campaign at Cerro Bayo

Andean increased the number of drilling rigs working at Cerro Bayo to six during the quarter. The company describes the drilling as aggressive and says it produced infill results that support its strategy to upgrade more of the resource for use in upcoming development studies.

The infill approach is aimed at converting resource material into a higher confidence category, which can then be used in development planning. The release describes the drilling as proceeding in parallel with the studies.

The Juanita Prospect

Exploration identified the Juanita Prospect, a breccia-hosted silver-gold trend about 2 kilometres long located outside the current Mineral Resource of 136 million ounces of silver equivalent. Surface assays at the prospect returned values of up to 62,663 grams per tonne of silver equivalent.

Mapping and sawn-channel sampling are progressing at Juanita to define priority drill targets. Greenfield drill permitting is also underway across the corridor between Juanita and the Droughtmaster area.

Development Studies

Andean is ramping up development studies in parallel with its resource growth work. The company's plan is to use the upgraded resource material as the basis for those studies, so the drilling and study programs are closely linked.

Surface sampling results are an early indication of mineralisation and do not represent a resource estimate. Further drilling will be needed before the prospect can be assessed in terms of tonnage and grade.

Final Word

Andean's September quarter combines an expanded drilling campaign at Cerro Bayo with the identification of the Juanita Prospect, which lies outside the current resource. Development studies are being prepared on the same timeline as the drilling. Future quarterly reports will show whether Juanita's surface results are confirmed by drilling and how the resource changes.

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