Latest Sulphide Mineralisation News

Australian Rare Earths has extended its Overland carbonatite discovery roughly 5km south, with hole OV176 intersecting 130 metres of interpreted carbonatite and ending within the unit. The geological footprint now appears to track a 10km magnetic corridor, but assays will determine whether the system carries meaningful niobium and rare earth grades.

Broken Hill Gold has started a 48 line-kilometre induced polarisation survey and 670 line-kilometre magnetic program at White Dam, targeting sulphide mineralisation beneath existing oxide prospects. A second diamond rig is also mobilising, but the next value test remains firmly in the ground: geophysical anomalies must translate into drilling results and an upgraded resource.

Evolution Energy Minerals has moved its Chikundo Copper Project from surface exploration to subsurface testing, with a 3,350-metre reverse circulation campaign now underway in southern Tanzania. The programme will first target the Malachite Pit and main Chikundo anomaly before optional holes assess three additional prospects.

Cosmo Metals has secured approval for up to 2,200 metres of maiden drilling at the Mona copper-gold-silver prospect in New South Wales. The campaign will test whether striking grades from historic mine dumps reflect concealed sulphide mineralisation below the old workings.

Lode Resources has identified a new polymetallic lode at its Montezuma project in Tasmania, with a narrow interval returning exceptional tin, copper, silver, antimony, gold and lead grades. Three further mineralised zones from the same hole remain awaiting assays, while follow-up drilling is already underway.

Exultant Mining has reported its first consolidated annual results since listing, recording a $1.526 million loss and holding $3.50 million in cash at 30 June 2026. Exploration has advanced across Black Hammer and Peak View, but the company remains dependent on future funding and assay results to justify its portfolio.

Galileo Mining has lined up two drilling programs at its Norseman project, targeting an untested extension near Callisto and shallow sulphide mineralisation at Mission Sill. The programs will test encouraging but still preliminary exploration indicators, with results yet to come.

Marimaca Copper has reported a 216-metre sulphide intersection grading 0.96% copper and 7.2g/t silver at Pampa Medina, including 62 metres at 2.20% copper and 21.5g/t silver. Step-out drilling also extended mineralised horizons beyond the central zone, while diamond drilling is now testing deeper ground to the north and northwest.

Polymetals Resources moved its Endeavor silver-zinc-lead mine from restart to commercial production in FY2026, generating A$100.0 million in revenue. The milestone came alongside a A$47.0 million loss, negative operating cash flow and an auditor warning over going-concern uncertainty.

Raptor Metals has launched a multi-element assay program on archived drill core at its Chester Project, aiming to unlock the polymetallic potential of its existing copper resource in Canada’s Bathurst Mining Camp.

Polymetals Resources has boosted the Endeavor Mine’s Mineral Resource to 20.7 million tonnes, adding 1.3 Mt of high-grade sulphide mineralisation in the Upper Main Lode despite ongoing depletion and a more conservative density model.

Right Resources has boosted its Blue Prospect gold target with a standout 5.16 g/t rock-chip assay, refining a 4 km gold corridor and setting the stage for maiden drilling in September.