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Southern Hemisphere nails 156m copper drill hit

Updated: Apr 17

Southern Hemisphere’s RC drill rig at Cerro De Oro, with Central Porphyry workings in the centre right Credit: File

Southern Hemisphere Mining has reported a solid intercept of 156m at a grade of 0.51 per cent copper equivalent in early results from extension drilling at its Llahuin copper-gold-molybdenum project in Chile. The intercept, which was from surface, includes 82m at 0.67 per cent copper equivalent from 46m and 26m at 0.75 per cent copper equivalent from 48m.

The company’s next best intercepts were 136m in a second hole at a grade of 0.47 per cent copper equivalent from 42m and 18m running at 0.46 per cent copper equivalent from 100m.

The two holes successfully define westward and depth extensions of mineralisation at the Cerro deposit, opening the way for further follow-up drilling in the next campaign.

A third hole put into the same section, as a shallow step-back about 160m east from the second hole, nailed 18m at 0.46 per cent copper equivalent from 66m.

All three holes are part of a 17-hole extensional drilling program at the Cerro and Ferro deposits in the northern part of the company’s currently defined mineralised trend which extends over 3.7km from its Southern Porphyry prospect to its Central prospect in the north.

The total analysis for each of the three holes comprise, 156m at 0.41 per cent copper, 0.09ppm gold and 63ppm molybdenum, from surface, 136m at 0.27 per cent copper, 0.17ppm gold and 167ppm molybdenum from 42m and 18m at 0.25 per cent copper, 0.24ppm gold and 83ppm molybdenum from 66m.

Management says it has revised its interpretation of the Llahuin system based on its detailed structural mapping and surface sampling, bringing about a change of drilling orientation.

It says the new drilling direction appears to confirm mineralisation remains open to the west and south-west and that its recent holes are now intersecting more of the higher-grade vein swarms than are evident in historical drilling, which the company sees as enhancing the upside for the open pittable potential of the deposits.

The current JORC compliant total measured and indicated resources for the Llahuin project stand at 149 million tonnes at 0.29 per cent copper, 0.12g/t gold, 0.008 per cent molybdenum, for a copper equivalent grade of 0.41 per cent.

An additional estimated inferred resource comprises 20 million tonnes at 0.2 per cent copper, 0.19g/t gold and 0.005 per cent molybdenum, for a copper equivalent grade of 0.36 per cent.

Results from the remaining 14 drill holes remain to be received and will inform the company’s next steps and priorities.

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