Latest Underground Mining Development News

Core Lithium has begun underground decline development at its BP33 deposit within the Finniss Lithium Project, alongside ongoing open pit mining at Grants, and successfully shipped its first lithium products via Darwin Port.

Cokal Limited has secured regulatory approval to resume mining at its Bumi Barito Mineral project, with operations set to restart mid-June and a 10,000 MT coal shipment planned for late June.

Rumble Resources has locked in a toll milling and blending agreement with Gylden Resources and Kirkalocka Gold to process 100% of Western Queen gold ore at Kirkalocka’s plant, enabling faster cash flow and reduced capital expenditure.

Ora Banda Mining has significantly expanded its gold resources and reserves at Waihi and Round Dam, while greenlighting a $375 million new mill and Waihi Underground development as part of its DRIVE to 300 growth plan.

Liontown Limited delivered its strongest financial quarter since production began, achieving a self-funded quarter with a $33 million cash boost and surpassing underground mining targets ahead of schedule, while maintaining FY2026 guidance amid robust lithium market conditions.

Medallion Metals has greenlit development at Ravensthorpe following a $50 million loan and environmental approval, while integrating Forrestania assets to underpin a multi-source gold strategy.

Celsius Resources appoints Bardin Davis as MD to lead financing efforts for the MCB Copper-Gold Project, extends Final Investment Decision timeline to late 2026, and navigates a complex ownership dispute in the Philippines while raising A$9.3 million.

Grange Resources has released its 2025 Annual Mineral Resource and Ore Reserve Statement for its Savage River operation, reporting only minor declines due to mining depletion and ongoing refinement of underground plans.

Vault Minerals has delivered a robust half-year result with a 44% jump in EBITDA and declared its first-ever dividend, signalling confidence in its growth and cash flow outlook.

Rumble Resources reports multiple high-grade gold and tungsten intercepts from its Western Queen project, advancing underground mine development with strong economic indicators and ongoing permitting progress.

Meeka Metals delivered a robust December quarter with a 28% jump in gold production and nearly doubled operating cash flow, while exploration at new targets hints at further resource expansion.

Kingston Resources reported a 14% increase in quarterly revenue to $18.1 million despite a geotechnical setback, while underground mining development gains momentum and resource estimates grow by 29%.