Latest Heap Leaching News

Alliance Nickel has approved a second phase of vat leach testing after preliminary NiWest results supported continued evaluation of the alternative processing route. The potential prize is substantial, but quantified recoveries and capital savings remain unproven.

Challenger Gold has locked in US$24 million through five-year unsecured convertible debentures to advance its Hualilán project, with a further US$6.3 million potentially available. The financing carries an 11% coupon and only part of the proceeds is unconditional, leaving shareholder approval and a much larger funding requirement ahead.

Australian Rare Earths has converted Koppamurra from an exploration story into a defined rare earths development case, with an A$858 million after-tax PFS NPV and a maiden Ore Reserve. The next test is less geological than financial: the company must fund the path from pilot processing to construction while carrying a material going-concern warning.

Cobalt Blue has cleared important technical and regulatory hurdles at its Kwinana refinery, but the pre-revenue developer says further funding is needed and auditors flagged material uncertainty over its ability to continue as a going concern. The company reported an A$8.797 million loss for FY2026 despite ending the year with A$4.265 million in cash.

Broken Hill Gold has completed the transfer of its North Queensland exploration portfolio to Manda Resources, setting up a separate vehicle for the assets and a potential in-specie share distribution to BH6 holders. The company will now concentrate on White Dam in South Australia, although shareholder approval and the final Manda IPO structure are still pending.

Cavalier Resources is advancing site preparation, contractor negotiations and recruitment at its Crawford Gold Project, but its financing remains unfinished after Javelin Global Commodities’ exclusivity period expired. Shareholders have also approved a A$60,000 share subscription by interim CEO Daniel Tuffin.

Anax Metals has moved its Whim Creek copper-zinc project closer to a targeted investment decision, backed by strong feasibility economics and new drilling. But the annual report makes clear that development still depends on securing further funding, with the auditor warning of a material uncertainty over going concern.

OD6 Metals has transformed its portfolio with the completed acquisition of Nevada’s Quinn Fluorspar Project, but the strategic expansion comes alongside a larger loss, ongoing funding needs and substantial permitting risk. The company is now targeting drilling and a maiden resource at Quinn while advancing laboratory-scale rare earth processing work at Splinter Rock.

OzAurum Resources has shifted Mulgabbie North from feasibility work into early construction, backed by encouraging laboratory heap leach results and a $4.10 million placement. But the company remains loss-making, cash-burning and dependent on further funding, with its auditor flagging a material uncertainty over going concern.

TG Metals has strengthened its gold and lithium resource base, but the annual report carries a material uncertainty over its ability to continue as a going concern. The company ended June with $641,906 in cash, before securing a further $2.5 million placement after year end.

Broken Hill Gold has lifted the Vertigo deposit’s Indicated oxide resource by 160% and increased White Dam’s global resource to 118,496 ounces. The company is now testing whether shallow material can support a heap-leach restart while drilling deeper gold-copper sulphide potential.

Red Metal’s Sybella project has moved closer to a development decision after heap-leach testing delivered strong rare earth extractions with low impurity levels. The company also reported a $19.17 million FY2026 profit, although most of that result came from the accounting gain tied to its Maronan Metals restructuring.