Great Southern Copper plc (LSE: GSCU) continues to make exciting strides at its Cerro Negro project in Chile, particularly at the Mustasa Mine. The recent Phase 2 drilling campaign has delivered spectacular assay results, confirming the presence of high-grade copper and silver mineralization and setting the stage for an ambitious Phase 3 drilling program.


As we delve deeper into the findings, it becomes clear that this project holds tremendous promise, driven by a combination of thorough exploration, advanced geophysical surveys, and a dedicated on-site team committed to unlocking the full potential of the deposit.

Introduction to the Mostaza Mine and Phase 2 Drilling Success

The Mustasa Mine, a core asset within the Cerro Negro project, has been the focus of Great Southern Copper’s exploration efforts. The Phase 2 drilling program, recently completed, has yielded impressive results that have energized both the on-site team and shareholders alike. One of the standout drill holes, CNG25-DD013, intersected a 5-meter zone grading 3.04% copper (Cu) and a remarkable 322.4 grams per tonne (g/t) silver (Ag) within a broader 13.9-meter interval averaging 1.74% Cu and 153.4 g/t Ag. These numbers are not just encouraging—they are spectacular and underscore the high-grade nature of the mineralization at Mustasa.

Additionally, drillhole DD012 confirmed mineralization located 500 meters south of the mine, extending the known footprint of the deposit and highlighting the potential for further discoveries beyond the immediate mining area. This southern extension is particularly exciting as it suggests that the mineralized system is more extensive than initially thought, offering a larger resource base to explore and develop.

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