Great Southern Copper (LSE:GSCU) has reported encouraging partial assay results from step-out diamond drill hole CNG25-DD042 at the Cerro Negro prospect in Chile, confirming that the Mostaza copper-silver system extends approximately 300–400 metres south of the historic mine workings. The drill hole intersected several mineralised intervals, including 21.8 metres grading 1.04% copper and 52.26 g/t silver, highlighted by a higher-grade section of 1.6 metres returning 6.55% copper and 319.75 g/t silver. The results also identified breccia zones enriched with lead, zinc and silver, reinforcing the interpretation of a structurally complex, stacked mineral deposit.
The latest drilling suggests the mineralised system is becoming thicker and more continuous further south, extending the defined copper-silver trend to more than 400 metres along strike. The system also remains open both at depth and beneath shallow cover. These findings will guide a fully funded Phase IV drilling campaign, which will focus on in-fill drilling aimed at linking Lens 2 mineralisation between the historic Mostaza mine and recent drill holes. Additional step-out drilling is planned to test the wider two-kilometre Mostaza Fault Zone, highlighting the broader growth potential of the project.
The company’s outlook remains influenced by early-stage financial characteristics typical of exploration firms. Great Southern Copper is currently pre-revenue, with widening losses and continued negative free cash flow, although it reports no debt on its balance sheet. Technical indicators are mixed to weak, with the share price trading below the 20-day moving average and momentum indicators relatively subdued. Valuation metrics are also limited due to the absence of earnings and dividend yield data.
More about Great Southern Copper PLC
Great Southern Copper is a London-listed exploration company focused on identifying and advancing copper, gold, and silver deposits in Chile. Its main activities centre on the Especularita Project, which includes the Cerro Negro prospect and the historic Mostaza mine area. The company is targeting structurally controlled, near-surface mineral systems that benefit from proximity to established mining infrastructure.
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