Great Southern Copper PLC (LSE:GSCU, FRA:E9E) CEO Sam Garrett talked with Proactive's Stephen Gunnion about encouraging new drill results from the Mostaza deposit at the Cerro Negro project in Chile, highlighting high-grade copper lenses and growing scale potential at depth.
Garrett described the latest results as “fantastic” and “very significant,” explaining that early indications suggest the deposit “appears to be getting bigger with depth.” This development is particularly important when considering future mining options, even though those decisions remain further down the track.
A key focus of the discussion was the relationship between the newly identified Lens 5 mineralisation and the Monolith Zone, located approximately 400 metres away. Garrett said the mineralisation style in Lens 5 “looks pretty much exactly the same” as that observed in nearby holes and at Monolith, raising the possibility that the system could connect into a much larger continuous copper body. He noted that infill drilling will be required to determine whether the zones join up into what could be a “potentially large deposit.”
Surface outcrop samples at Monolith have returned grades running “over 2% copper,” reinforcing confidence in the system. As Garrett put it: “This is what happens when you start drilling, and when you keep drilling, you start finding new things.”
The company is now advancing Phase IV drilling, focusing on scout drilling around Monolith, expanding Lens 5, and progressing toward a resource at Lens 2. Infrastructure at Cerro Negro, including roads, power, nearby towns, and potential processing plant options, provides valuable optionality and could support earlier cash flow.
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