Great Southern Copper (LSE:GSCU) has completed its largest and most advanced drilling programme to date at the Cerro Negro prospect within the Especularita project in Chile. Phase III diamond and reverse circulation drilling has extended the high-grade copper-silver system at the Mostaza area, highlighted by the identification of potential stacked high-grade Cu-Ag lenses and a newly recognised silver-lead-zinc lens.
Although assay results from several drill holes are still pending, early Phase III data has delivered encouraging copper and silver grades and confirmed mineralisation continuity across the wider Mostaza Fault Zone. These results support the company’s plans to continue drilling at Cerro Negro and to step up exploration activity at the Viuda and Colorada targets. At these prospects, Great Southern Copper is pursuing what it describes as district-scale porphyry copper-gold potential.
Looking ahead, the company is progressing detailed drill planning for 2026. This includes follow-up drilling at Cerro Negro and Viuda, alongside initial drilling at the Colorada target. Management is aiming to leverage strong copper, gold and silver market conditions and unlock what both company guidance and independent research describe as significant upside potential across its Chilean asset base.
From a market perspective, the company’s outlook remains constrained by weak financial fundamentals, reflecting its pre-revenue status, widening losses and ongoing cash outflows. Technical indicators are broadly supportive, with the share price trading above key moving averages and a positive MACD signal, although elevated RSI and Stochastic readings suggest near-term overbought conditions. Corporate developments provide a modest positive, underpinned by active exploration progress and recent funding, while valuation metrics remain unavailable due to the absence of earnings and dividend data.
More about Great Southern Copper PLC
Great Southern Copper PLC is a UK-listed mineral exploration company focused on the discovery of copper, gold and silver resources in Chile. The company holds an option to acquire 100% of the Especularita project, located in Chile’s under-explored coastal metallogenic belt, an area known for major copper operations and established infrastructure. Positioned to benefit from copper’s role as a critical metal in the global energy transition, the company is targeting both large-scale porphyry-style copper-gold systems and high-grade copper-silver-gold deposits through systematic exploration and drilling programmes.
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