Latest Mineral Resource Estimates News

Astral Resources has boosted its Mandilla Gold Project Mineral Resource Estimate by 22% to 1.74 million ounces, introducing a maiden Measured Resource for the flagship Theia deposit. Including Feysville and Spargoville, the Group’s total resource now stands at 2.07 million ounces.

Kalgoorlie Gold Mining has launched a substantial 41-hole reverse circulation drilling campaign at its Pinjin Gold Project, targeting resource growth at Kirgella Gift, Providence, and Lighthorse. The program aims to refine and extend existing gold mineralisation within a key part of the Laverton Tectonic Zone.

Eagle Mountain Mining has formalised a joint venture with Nittetsu Mining for the Oracle Ridge copper project in Arizona, with Nittetsu committing US$20 million to advance exploration and development while managing the operation.

GoldArc Resources has wrapped up its biggest ever drilling effort at Leonora South, completing 15,260m across multiple programs including partner-funded development drilling. Assay results expected by late May will be pivotal for advancing resource definition and new discoveries.

Terrain Minerals has completed a critical four-hole diamond drilling program at its Lightning Gold Project, securing key structural and density data that de-risks the upcoming maiden Mineral Resource Estimate scheduled for July 2026. The results confirm continuity of high-grade gold mineralisation, underpinning the project's transition from exploration to resource definition.

Peel Mining has agreed to sell its South Cobar Copper Project to Aeris Resources, while spinning off its remaining Cobar Basin assets into a new ASX-listed company, Spectre Metals. Exploration highlights from the Southern Nights Complex and Nombinnie Prospect underpin the growth potential of the new entity.

High-Tech Metals has kicked off a 5,000-metre drilling campaign at its Mt Fisher gold project to unlock significant resource expansion potential. An independent review revealed that less than 60% of known mineralised intercepts are included in the current resource, highlighting substantial upside.

Barton Gold's recent drilling at the Challenger Gold Project has revealed previously unmodelled high-grade gold mineralisation up to 170.7 g/t Au adjacent to historical open pits, boosting prospects for a low-risk operational restart.

Caprice Resources has identified multiple new gold anomalies at its Island Gold Project, setting the stage for deeper drilling follow-up amid a 50,000m program underway.

Greenwing Resources’ latest geophysical analysis reveals the San Jorge lithium brine system extends to 1,000m depth with increasing lithium grades, setting the stage for a significant resource expansion.

Wia Gold is making steady progress on its Kokoseb Gold Project in Namibia, reporting strong high-grade drilling results that bolster underground mining prospects alongside ongoing feasibility studies and strategic leadership appointments.

Breakthrough Minerals has kicked off its first diamond drilling campaign at the Barbara Copper-Gold Project, aiming to extend high-grade mineralisation and boost its Queensland resource base shortly after acquiring the North Queensland Copper-Gold Project.