Great Southern Copper PLC (LSE:GSCU) has reported high-grade assay results from rock chip sampling at the Monolith copper-silver prospect within its Cerro Negro project in Chile.
The company said 48 channel samples returned grades of up to 271 grams per tonne silver and 2.05% copper, averaging 35.4 grams per tonne silver and 0.31% copper despite surface leaching.
Sampling results have defined a mineralised zone more than 50 metres wide that remains open to the south and southeast.
Prospect-scale mapping and sampling continue at Cerro Negro to assess the extent of structurally controlled copper-silver mineralisation and potential for porphyry-style systems.
"With copper and silver prices at record highs, these high-grade results are both exciting and highly significant since they further demonstrate and expand the scale potential of the Cerro Negro Cu-Ag prospect," said chief executive Sam Garrett.
"With Phase III drilling underway at Mostaza, the team is also working in parallel to advance exploration across additional targets within the Cerro Negro prospect area to expand the mineralised footprint."
The company has also mobilised a second diamond drill rig to the nearby Mostaza mine to expand the Phase III drill programme targeting extensions and infill of Lens 2 mineralisation.
Garrett added: "Rig 2 will initially target extensions and in-fill to the Lens 2 mineralisation. The Company looks forward to updating the market as drilling progresses and results are received".