Southern Hemisphere Mining Intersects Extensive Copper Zones at Llahuin Project

Strong Copper Intercepts Reinforce Llahuin's Scale Potential

Southern Hemisphere Mining (ASX:SUH) has delivered a fresh batch of encouraging assay results from its ongoing diamond drilling campaign at the Llahuin Copper-Gold-Molybdenum Project in Chile. Notably, hole 24LHRD067 returned a striking 241 metres at 0.42% copper equivalent (CuEq) starting from just 18 metres downhole, including 143 metres at 0.51% CuEq. Other standout intercepts include 154 metres at 0.66% CuEq from surface in hole 24LHRD065 and 156 metres at 0.43% CuEq from 2 metres in hole 24LHRD055, reinforcing the project's robust mineralisation footprint.

These results underpin Southern Hemisphere's interpretation of a large, vertically extensive copper porphyry system, with mineralisation remaining open at depth. The company has identified a new porphyry centre at Ferro South, where the intensity of veining and sulphide mineralisation suggests proximity to a more strongly mineralised zone. Drilling is ongoing to locate the feeder zone, which could enhance grades and resource size further.

Resource Upgrade and Strategic Positioning

The current drilling campaign, comprising nine diamond tails totalling 2,251 metres, extends and confirms mineralisation beneath previous reverse circulation (RC) holes. Southern Hemisphere is progressing a resource upgrade that will incorporate these latest results once all assays are received and validated. The existing JORC-compliant resource stands at approximately 218 million tonnes at 0.38% CuEq across measured, indicated, and inferred categories.

Chairman Mark Stowell emphasised the project's scale and growth potential, referencing a previously reported exploration target of 260 to 340 million tonnes. At a market capitalisation near $22 million, the company considers itself undervalued relative to the resource size, jurisdictional quality, and ongoing drilling progress. He highlighted Llahuin's emergence as a serious copper-gold play, attracting attention from larger copper operators exploring growth options.

Geological Context and Future Drilling Plans

The drilling results demonstrate strong continuity of mineralisation at depth, particularly at Ferro South and the Cerro deposit, where hole 24LHRD065 intersected 154 metres at 0.65% CuEq, exceeding current resource grades. The project benefits from detailed geological logging, QAQC protocols, and metallurgical testwork showing promising recoveries for copper, gold, and molybdenum.

Further deep drilling is planned to test the feeder zones and expand the resource base. The company also continues to leverage geochemical footprint modelling and geophysical surveys to refine targeting strategies. Southern Hemisphere’s disciplined approach to sampling, assay verification, and data management supports confidence in the evolving resource model.

With assay results from the current campaign still pending, the market awaits the formal resource upgrade that could recalibrate Llahuin’s valuation and strategic appeal. The company’s focus on unlocking deeper, higher-grade zones aligns with broader trends of copper demand and exploration in top-tier jurisdictions.