Latest Underground Mining News

Regis Resources (ASX:RRL) has reported a sixth consecutive year of underground resource and reserve growth at its Duketon and Tropicana operations, highlighted by a 120% increase in Ore Reserves at Garden Well Underground. The update also introduces an initial resource for the Southern Star deposit, reinforcing the company’s long-term underground mining potential.

South32's March quarter saw a tragic fatality at Worsley Alumina and weather disruptions, yet the miner delivered solid operational results and progressed its Hermosa zinc-lead-silver project. Production guidance was mostly maintained, with a notable revision lower for Australia Manganese due to water management issues.

Tanami Gold's Central Tanami Project Joint Venture has chosen Macmahon as preferred contractor for a $38 million underground exploration decline at Groundrush, aiming to kick off construction in September 2026.

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.

Rox Resources reports strong underground progress and high-grade gold intercepts at Youanmi, reinforcing confidence in hitting production targets on schedule.

Ora Banda Mining’s latest drilling at Golden Pole within the Waihi Project has delivered multiple thick, high-grade gold intersections, validating the lode’s underground mining prospects and setting the stage for its debut in the upcoming June resource and reserve estimates.

Rua Gold has lodged a Fast-Track Referral application for its Auld Creek gold and antimony project in New Zealand's Reefton Goldfield, aiming to speed up permitting and development under new government legislation.

Sunshine Metals (ASX:SHN) has delivered strong final assay results from its extensive grade control drilling at Liontown, revealing multiple high-grade gold and silver intercepts that bolster the case for a resource upgrade and a revised mining study scheduled for mid-2026.

Carnavale Resources has reinforced the high-grade nature of its Kookynie Gold Project with new drilling results, keeping its Bankable Feasibility Study on track for early Q3 2026 completion. The project’s robust economics and resource upgrades underpin growing investor interest.

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.

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.

Brightstar Resources has wrapped up its largest-ever processing campaign under the Genesis Minerals Ore Purchase Agreement, delivering nearly 8,000 ounces of gold and $53 million in gross revenue. This milestone strengthens Brightstar’s financial position ahead of its own processing plant construction and mine restarts in 2027.