06:07 AM EDT, 10/26/2026 (MT Newswires) -- Great Southern Copper (GSCU.L) is set to begin phase four diamond drilling at the Cerro Negro prospect in its Especularita copper-gold-silver project in Chile, according to a Monday release. The program will cover up to 5,000 meters of drilling to infill and extend the high-grade copper-silver mineralization at the Mostaza deposit, explore the nearby Mostaza Fault Zone and target the Monolith prospect for the first time. The UK-listed copper-gold-silver exploration company said the rig is being mobilized to the site.

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