Latest Heap Leach Processing News

Flagship Minerals has wrapped up its metallurgical drilling and trenching at the 2.1Moz Isidora Gold Project in Chile, progressing to pilot scale heap leach test work and ongoing infill drilling targeting a resource update later this year.

Alliance Nickel has begun vat leach testing on a bulk sample from its NiWest project, targeting a significant reduction in capital costs by replacing heap leaching with a lower-cost atmospheric process. Results are expected by late Q3 2026 and could reshape the project’s economics.

Australian Rare Earths (ASX: AR3) has announced a maiden Ore Reserve of 26 million tonnes at 920 ppm TREO for its Koppamurra Rare Earths Project, underpinned by a robust Pre-Feasibility Study delivering an A$858 million post-tax NPV and a rapid payback of less than one year.

Atomic Eagle Limited has obtained crucial environmental and social approvals for its Muntanga Uranium Project in Zambia, significantly reducing permitting risk and positioning the project as development-ready while maintaining focus on resource expansion.

OzAurum Resources has completed its extensive grade control drilling at Mulgabbie North, delivering consistent high-grade gold intercepts at shallow depths and progressing site civil works for heap leach infrastructure.

Red Metal’s large-scale column leach tests confirm high rare earth recoveries from coarsely crushed Sybella ores using weak sulphuric acid, underpinning a low-cost heap leach development pathway.

TG Metals has expanded the Van Uden gold resource by 1.8km to a total strike of 4.3km, revealing significant high-grade gold intercepts and advancing a near-term heap leach opportunity supported by promising laterite drilling.

OzAurum Resources has delivered another round of strong near-surface gold intercepts at its Mulgabbie North Paleochannel Project, reinforcing a low-cost heap leach development pathway and progressing site construction.

Helix Resources has boosted the inferred Mineral Resource at its Gold Basin project in Arizona to 280,000 ounces of gold, underpinning its farm-in strategy and advancing development prospects.

AusQuest has reported significant near-surface copper-gold mineralisation from its latest RC drilling at the Cangallo project in Peru, setting the stage for a substantial diamond drilling campaign targeting deeper, higher-grade zones.

OzAurum Resources has reinforced the potential of its Mulgabbie North Paleochannel Project with robust shallow, high-grade gold results from 112 reverse circulation drill holes, while progressing the commissioning of its heap leach plant to support a scalable, low-capex gold operation.

Flagship Minerals has secured A$2.75 million through a strategic placement led by long-term partners, poised to accelerate feasibility and technical work at its 2.1 million ounce Isidora Gold Project in Chile.