Latest Mineral Resource Estimation News

WhiteRock Lithium says all seven holes drilled in the first phase of its 2026 campaign intersected spodumene-bearing pegmatite, extending the Spodumene Mountain strike length by 115% to 1.4km. The result is encouraging, but laboratory assays are still needed to establish lithium grades and true widths.

Kali Metals has reported a 2.36-metre intersection grading 10.8g/t gold from just 8.7 metres at its Marble Bar project in Western Australia. The Phase II results extend the shallow gold system across a cumulative 3km strike, but the project remains at the exploration stage with no mineral resource yet defined.

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.

Haranga Resources is preparing to begin a 16-hole underground drilling campaign at its Lincoln Gold Project, targeting the southern resource and an under-drilled gap between the Lincoln and Comet zones. The programme arrives alongside new underground power infrastructure, completed dewatering and several assays that could shape a later resource update.

Evion has identified a previously unmined 200m by 200m prospect at its Carp Fluorspar Project in Nevada, just 300m from the historic South Pit. Assays are pending, with geophysical surveys and a potential maiden drilling programme next in line.

DPM Metals has extended mineralization beyond the existing Dumitru Potok resource in Serbia, led by a 21-metre interval grading 5.44% copper equivalent. The company will add up to 15,000 metres to its 2026 drilling campaign as it works towards a resource update and preliminary economic assessment.

Sovereign Metals says a simple add-on circuit at its Malawi project could generate US$722 million of pre-tax value from monazite by-product recovery. The opportunity is commercially striking, but remains a preliminary scoping result dependent on further testwork, approvals, funding and customer qualification.

Corazon Mining has confirmed shallow, high-grade gold mineralisation at its Wembley prospect in Western Australia, with drilling extending the known system about 60 metres east of historic work. Seven assays remain outstanding as the company prepares follow-up drilling aimed at an eventual Exploration Target and potential Mineral Resource.

Olympio Metals has begun field exploration across its Jacknife and Raven silver projects in the United States, with drilling at Jacknife expected to start imminently. A replacement announcement also strengthens the company’s description of a historical foreign estimate, while making clear that the estimate remains non-JORC and requires fresh verification.

Rua Gold has reported its highest-grade Auld Creek drilling results to date, including 0.6 metres at 136.2 g/t gold equivalent and 2.9 metres at 38.8 g/t gold equivalent. The company has completed 19,600 metres of resource drilling and is targeting an updated resource, approvals application and pre-feasibility study before year-end.

Osmond Resources reported a A$7.61 million FY26 loss and warned of a material uncertainty over its ability to continue as a going concern, despite holding A$5.50 million in cash. The company is betting its Spanish Orión project can move from exploration into a resource estimate and scoping study in the coming months.

Magnum Mining has confirmed broad shallow TREO enrichment across the 8.3 km² Feirinha target in Brazil, led by a 15-metre interval grading 2,190 ppm. The result is encouraging, but recoverability and mineral continuity remain untested as the company shifts to laboratory work.