Latest Underground Development News

Rox Resources has secured full permits and major contracts to push forward construction at Youanmi, with mining and processing plant works advancing towards a mid-2027 gold pour.

Hillgrove Resources boosted copper production and cash flow in the June quarter, hitting a 1.8Mtpa run rate at Kanmantoo and securing approval for the Emily Star underground development.

Gorilla Gold Mines has struck a spectacular new high-grade gold intercept at its Vivien Project in WA and secured underground mine de-watering to unlock redevelopment options.

AIC Mines projects copper production growth to 18,500 tonnes in FY27, driven by Jericho mine's commercial start and accelerated Eloise plant expansion.

Regis Resources has boosted its FY27 gold production guidance to 360-400koz, driven by higher output at Duketon and sustained growth capital investment.

Perseus Mining is ramping up underground production and expanding its resource base at the Yaouré Gold Mine in Côte d’Ivoire, supported by a $34 million FY27 drilling program aimed at extending mine life and boosting mineral resources.

Black Cat Syndicate has revealed two new high-grade gold discoveries at its Paulsens Gold Operation, Lynx and Regulus, which highlight untapped structural zones and underpin a more expansive gold system with strong production and resource growth potential.

Rox Resources has delivered strong drilling results at its Youanmi Gold Mine, confirming promising underground grades and new exploration targets that could extend mine life beyond current plans.

Perpetual Resources has completed its first on-site technical assessment of the Nevada Scheelite Tungsten Project, validating key geological features and historical infrastructure. Six rock chip samples have been collected for assay, with results awaited as the company advances its technical work program.

Core Lithium has kicked off open pit mining at Grants and underground development at BP33, backed by strong cash reserves and strategic asset divestment plans.

Rio Tinto reported a 3% year-on-year increase in copper equivalent production for H1 2026, driven by Oyu Tolgoi’s 31% growth and record iron ore output in the Pilbara, while maintaining full-year guidance amid geopolitical headwinds.

Orezone Gold delivered a solid Q2 2026 as a multi-mine producer with Bomboré mining ahead of schedule and Casa Berardi advancing underground development despite a wildfire-induced pause. The company reaffirmed its 2026 production guidance amid operational challenges.