Great Southern Copper unearths more high grade at Mostaza
Published: 03:08 07 Apr 2025 EDT
Great Southern Copper PLC (LSE:GSCU) has reported further high-grade assay results from drilling at the Mostaza Mine, part of its Cerro Negro project in Chile.
In particular, hole DD007 confirms that high-grade copper-silver mineralisation is continuing along trend south of the Mostaza.
Chief executive Sam Garratt highlighted that this result greatly enhances the potential value of this significant copper-silver deposit.
"Excitement is building at Cerro Negro, but we have a lot of work ahead of us as we seek to demonstrate the size and economic value of this exciting high-grade deposit,” Garrett said in a statement.
He added: "Phase II diamond drilling is well under-way with two rigs now in the Mostaza pit testing the depth extensions of the high-grade mineralisation identified in Phase I.
“To date all Phase II holes have intersected the mineralised lens to a vertical depth of 100m below the original hole 1 intercept.”
Phase II drilling will comprise ten more holes, for a total of 1,059 metres.
All new holes drilled so far intersected the mineralised lens down to 100 metres below the original intercepts.
Latest drill results details
Results from drill hole DD007 included 33 metres at 1.96% copper and 60.6 grams per tonne silver from 87 metres depth. It had 3.85 metres at 5.21% copper and 318.2 grams per tonne silver and 5 metres at 5.90% copper and 99.2 grams per tonne silver.
Plus, inside that was 2.5 metres at 9.67% copper and 175.4 grams per tonne silver.
One sample, meanwhile, graded 16.15% copper and 646 grams per tonne silver, which is the highest assay result reported at the project to date.
Meanwhile, Hole DD007 is located 270 metres south of DD001, which previously returned 20 metres at 3.31% copper and 269.9 grams per tonne silver.
DD006 intersected several oxidised and low-grade zones with anomalous copper and silver. The best result was 0.46m at 0.08% Cu and 24.9 g/t Ag.
