Antares Metals Uncovers High Grade Copper at Cromwell Prospect

Antares Metals Limited (ASX: AM5) has announced the discovery of a significant copper mineralisation zone at its Cromwell prospect, part of the Mount Isa North Project in Queensland. The company reported rock chip samples returning grades as high as 22.5 percent copper, confirming the presence of a district-scale mineralised system.

This breakthrough comes from ongoing fieldwork that identified multiple north to south trending shear zones extending over a nine kilometre strike length and up to 30 metres wide. The zones remain open along strike, with 81 rock chip samples collected. Impressively, about 36 percent of these samples showed copper concentrations above 1 percent, and 17 percent exceeded 2 percent copper.

The highest-grade sample recorded was 22.5 percent copper, alongside notable values of gold and silver. These results are especially promising given the minimal historic exploration in the area, which had overlooked the mineralisation due to its subtle visual characteristics.

Johan Lambrechts, CEO of Antares Metals, credited the discovery to innovative geological thinking and meticulous field mapping. “The Cromwell find showcases the strength of our targeted exploration strategy. It opens up an extensive new zone of opportunity in a region where copper potential has been largely underexplored,” he said.

The mineralisation is associated with quartz and quartz carbonate veins, with copper present as malachite, chalcocite, chrysocolla, and cuprite. The largest shear zone identified, named Cromwell A, spans the full nine kilometre length and remains open at both ends, with copper mineralisation found not only in veins but also disseminated throughout the shear fabric.

Looking ahead, Antares Metals plans to conduct further mapping, soil geophysical surveys, and airborne geophysical programs to better define high potential targets. The company is committed to systematic exploration to unlock the full potential of the Cromwell corridor.

This discovery further enhances Antares Metals’ position in the Mount Isa region, where it continues to build momentum across a portfolio of copper and uranium targets.