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Great Southern Copper PLC ( (GB:GSCU) ) has issued an update.
Great Southern Copper reported Phase III drilling results from its Cerro Negro prospect in Chile, confirming multiple stacked high-grade copper-silver lenses at the Mostaza deposit and suggesting the mineralised system is broadening at depth and along trend. New diamond drill holes DD033, DD036 and DD034 returned significant copper-silver intercepts within a wider lower-grade envelope, with associated lead-zinc zones pointing to a zoned system that could exceed 80 metres in thickness.
The results materially expand the perceived copper endowment and scale potential of the Mostaza discovery, indicating both high-grade lens-style and broader bulk-tonnage targets that could enhance the project’s future economic significance. Management is now advancing plans for a Phase IV resource and exploration drilling programme, while further Phase III assays and metallurgical test work are pending, which together are expected to refine the geological model and guide prioritisation of high-impact drill targets.
The most recent analyst rating on (GB:GSCU) stock is a Sell with a £3.00 price target. To see the full list of analyst forecasts on Great Southern Copper PLC stock, see the GB:GSCU Stock Forecast page.
Spark’s Take on GB:GSCU Stock
According to Spark, TipRanks’ AI Analyst, GB:GSCU is a Neutral.
The score is primarily driven by weak financial performance (pre-revenue, widening losses, and sustained negative free cash flow), partially offset by the absence of reported debt. Technical signals are mixed-to-weak, with price below the 20-day average and low momentum indicators, while valuation impact is limited due to missing P/E and dividend yield.
To see Spark’s full report on GB: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. Its flagship Especularita project includes the Cerro Negro prospect and the historic Mostaza mine, located at low elevation with good access to established mining infrastructure, and the company holds an option to acquire 100% of the Cerro Negro project.
Average Trading Volume: 3,356,117
Technical Sentiment Signal: Buy
Current Market Cap: £20.77M
Learn more about GSCU stock on TipRanks’ Stock Analysis page.

