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Great Southern Copper Extends High-Grade Mostaza Copper-Silver Discovery in Chile

Story Highlights
  • Phase III drilling at Mostaza confirmed high-grade copper-silver continuity, extending the deposit along strike and depth.
  • Results reveal a broader, stacked-lens system remaining open, guiding Phase IV drilling to grow the Cerro Negro resource.
  • Looking for the best stocks to buy? Follow the recommendations of top-performing analysts.
Great Southern Copper Extends High-Grade Mostaza Copper-Silver Discovery in Chile

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Great Southern Copper PLC ( (GB:GSCU) ) has issued an update.

Great Southern Copper has reported final Phase III drilling results from the Mostaza copper-silver discovery at its Cerro Negro prospect in Chile, confirming high-grade mineralisation with intercepts up to 4.24% copper and 233 grams per tonne silver. The programme demonstrates continuity of the deposit along strike and at depth, validates induced polarisation chargeability as an exploration tool, and confirms an associated lead-zinc-silver breccia zone in the hanging wall.

The results extend the known limits of the Mostaza deposit, reveal a broadening system at depth with high-grade lenses within a wider mineralised envelope, and support an emerging stacked-lens geological model. With the mineralised system remaining open and rights to 100% ownership, the company is now interpreting Phase III data to design a Phase IV drilling campaign aimed at expanding the resource and advancing the wider Cerro Negro system, which now measures over 2 kilometres by 1 kilometre.

Spark’s Take on GSCU Stock

According to Spark, TipRanks’ AI Analyst, GSCU is a Neutral.

The score is held down primarily by weak financial performance—no revenue, widening losses, and increasing cash burn despite having no debt. Technicals are a positive, with price trading above major moving averages and positive MACD, but valuation signals are limited due to a non-meaningful P/E and no dividend yield data.

To see Spark’s full report on GSCU stock, click here.

More about Great Southern Copper PLC

Great Southern Copper is a London-listed exploration company focused on copper, gold and silver projects in Chile, particularly within the Cretaceous coastal metallogenic belt. Its Especularita Project, including the Cerro Negro prospect and Mostaza copper-silver discovery, sits at low altitude with good infrastructure access and lies along trend of major Andean porphyry copper deposits.

Average Trading Volume: 2,723,670

Technical Sentiment Signal: Buy

Current Market Cap: £21.8M

For a thorough assessment of GSCU stock, go to TipRanks’ Stock Analysis page.

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