Antares Metals Unveils New Copper Zones and Uranium Targets at Mt Isa North

Exploration Momentum Builds at Mt Isa North

Antares Metals Limited (ASX – AM5) has delivered a strong quarterly update for the period ending 30 June 2025, highlighting significant advances at its Mt Isa North Copper-Uranium Project in Queensland. The company completed a second phase of reverse circulation (RC) drilling at the Surprise Copper Project, totaling 1,384 metres, targeting previously untested areas identified through geophysical surveys and surface sampling.

Early fieldwork uncovered exceptionally high-grade rock chips, with copper concentrations reaching up to 26% in artisanal workings north of the Surprise Mine. This encouraged further drilling, which confirmed a new mineralised zone 200 metres north of the historic mine with an intercept of 2.0 metres at 2.0% copper. This extension suggests the mineralised structure is more extensive than previously understood, opening new avenues for exploration along strike and at depth.

Marvel Discovery Expands Copper Potential

Adding to the excitement, Antares announced the discovery of a new copper prospect named "Marvel," located 1.2 kilometres north of Surprise. Drillhole ASD015 intersected an 80-metre-wide zone of disseminated sulphide and chalcopyrite mineralisation starting from 110 metres downhole. Unlike the structurally controlled high-grade mineralisation at Surprise, Marvel represents a potentially large-scale disseminated copper system, broadening the project's geological diversity and potential resource base.

These two distinct targets, an extension of Surprise and the new Marvel prospect, are slated for further testing in upcoming Phase 3 drilling campaigns, underscoring Antares’ commitment to unlocking value from its extensive tenure in the region.

Uranium Targets Gain Focus

Parallel to copper exploration, Antares has intensified its focus on uranium prospects within the Mt Isa North project. A comprehensive data review identified 49 uranium targets, with 10 ranked as high priority based on their geological characteristics akin to the nearby Valhalla uranium deposit. Initial field validation has already commenced, including sampling at the Queens Gift uranium project, where visible copper was detected alongside uranium mineralisation. This co-occurrence enhances the prospectivity for dual commodity development, potentially increasing the project's economic appeal.

Conglomerate Creek and Corporate Updates

At the Conglomerate Creek Copper-Gold prospect, reconnaissance sampling returned copper grades up to 18%, reinforcing the presence of mineralised fluids and supporting future drill targeting. Meanwhile, exploration activities at the Carlingup Lithium-Nickel Project in Western Australia ceased following the surrender of mineral exploration licenses, marking a strategic shift in focus.

On the corporate front, Antares welcomed Matthew Porter as its new Exploration Manager, bringing valuable regional expertise to the team. Financially, the company ended the quarter with approximately $1.4 million in cash and received a $147,237 research and development tax refund related to nickel recovery process development.

Looking Ahead

With assay results from recent drilling expected imminently, Antares Metals is poised to refine its understanding of the mineralisation at Mt Isa North. The combination of new copper discoveries and a robust pipeline of uranium targets positions the company well for advancing its exploration agenda and enhancing shareholder value.