Latest Heap Leaching News

Tartana Minerals has launched a targeted $0.435 million upgrade to its Copper Sulphate Pentahydrate plant, aiming to increase production capacity and reliability amid rising copper prices. The move follows positive test results on higher-grade pit fill material, potentially adding new feedstock without extra crushing.

Riedel Resources has reported impressive high-grade gold and silver assay results from its diamond drilling at the Tintic deposit in Arizona, reinforcing the potential of the Kingman Gold Project. These findings pave the way for expanded exploration and metallurgical testing.

PolarX Limited reports impressive high-grade gold assay results from its inaugural drilling at the Ridgeline prospect within Nevada’s Humboldt Range, revealing wide mineralised zones and plans for extensive follow-up drilling.

Pacgold has secured a profit share agreement to tap into the high-grade, historically mined Wadnaminga Project near its White Dam operations, aiming to fast-track gold production from legacy tailings and untested lodes.

Anax Metals has released an updated Definitive Feasibility Study for its Whim Creek Copper Project, confirming robust economics with a pre-tax NPV of A$501 million and an IRR of 98%, underpinned by a 10-year mine life and rapid payback.

Pacgold Limited reports strong initial assay results from its White Dam resource drilling, confirming high-grade gold and copper mineralisation consistent with existing models and supporting a resource upgrade. The company advances towards mine planning and production in 2026.

Norfolk Metals has confirmed the US$250,000 option payment for the Carmen Copper Project in Chile and completed the environmental impact report, setting the stage for further exploration and eventual ownership consolidation.

OzAurum Resources has kicked off a diamond drilling program at its Mulgabbie North Gold Project to advance heap leach feasibility and open pit design, supported by recent capital raising and ongoing plant refurbishment.

Norwest Minerals has reported robust gold assay results from its Phase 2 drilling at the Bulgera Gold Project, confirming mineralisation continuity at depth and setting the stage for a resource upgrade.

BHP Group Limited reported a robust half-year to December 2025, with copper overtaking iron ore as the top earnings contributor and a detailed technical assessment released for its promising Vicuña copper-gold project.

Australian Rare Earths Limited (ASX, AR3) reports breakthrough metallurgical testwork at its Koppamurra project, doubling heap leach irrigation rates and achieving around 70% recovery of key magnet rare earth elements. These advances promise faster production timelines and lower costs ahead of the Pre-Feasibility Study.

Austral Resources is set to unlock significant residual copper at its Mt Kelly site using Hydro-Jex®, a patented heap leach technology promising enhanced recovery without costly reprocessing.