Latest Underground Mining News

Northern Minerals has completed a Definitive Feasibility Study for its Browns Range Heavy Rare Earths Project, confirming its technical and financial viability as a critical new source of dysprosium and terbium outside China.

GBM Resources has regained 100% ownership of the Mt Coolon Gold Project after Newmont's exit, consolidating its position in Queensland's Drummond Basin with a substantial gold resource and promising exploration targets.

Ballard Mining has announced a promising new gold discovery at its Neptune Prospect within the Mt Ida Gold Project, revealing mineralisation akin to its Baldock Deposit. This breakthrough extends the exploration potential along the 13km Ballard Fault, marking a significant milestone in the company’s regional drilling campaign.

Vault Minerals reports a 31% increase in gold Ore Reserves to 4 million ounces and a 3% rise in Mineral Resources to 12.2 million ounces as of June 2025, driven by strong growth at Leonora, Sugar Zone, and Mount Monger.

First Au Limited has secured permits and funding to launch a 2,500-metre drilling campaign at its Gimlet Gold Project near Kalgoorlie, aiming to upgrade its 120,000-ounce inferred gold resource and advance feasibility studies.

Ora Banda Mining Limited reports a 24% increase in Ore Reserves and a Mineral Resource growth to 2.11 million ounces at its Davyhurst Gold Project, setting the stage for an ambitious $73 million exploration program in FY26.

Hillgrove Resources has completed its Nugent Acceleration Project ahead of schedule, boosting underground development and early ore processing. However, the company has lowered its 2025 copper production guidance and raised cost estimates due to geological challenges.

Tesoro Gold’s updated Scoping Study for the El Zorro Gold Project in Chile highlights a technically straightforward open pit operation with strong economics, projecting 1.26 million ounces of gold production over 13.5 years.

Emmerson Resources and Tennant Mining have formalised the White Devil Gold Project as a Major Mine JV, with Emmerson retaining a 40% contributing interest. Meanwhile, the Golden Forty deposit shifts to a Small Mines JV, providing Emmerson with a royalty stream.

Core Lithium has significantly increased its Ore Reserve Estimate at the Finniss Lithium Project, with the Carlton deposit upgrade driving a 42% rise in total reserves. This milestone strengthens the project's restart schedule and expansion potential.

Rox Resources has appointed Byrnecut Australia as the underground mining contractor for its Youanmi Gold Project, marking a key step toward production. The two-part contract will see initial exploration decline development followed by full-scale mining upon a positive investment decision.

Black Cat Syndicate has integrated strong grade-control drilling results from its Fingals deposit into mine plans, with mining set to begin late September 2025. Concurrently, the Lakewood processing plant is undergoing key upgrades to support ongoing production.