Latest Mineral Resource Estimation News

Hot Chili’s La Verde copper-gold discovery has expanded rapidly enough to become a cornerstone of the Costa Fuego project, while new funding gives the company room to pursue the next studies and permits. The key test now is whether drilling can translate into a maiden resource and a credible development case.

Oceana Metals has begun a 20,000-metre diamond drilling campaign at its Serra Negra rare earths project in Brazil, backed by high-grade historic assays and fresh capital. But the company’s $11.5 million FY2026 loss and an auditor-highlighted material uncertainty over going concern add a harder edge to the exploration story.

Ballymore Resources enters FY2027 with Dittmer moving towards underground resource drilling, bulk sampling and trial mining, while Torpy’s has emerged as a second high-grade polymetallic opportunity. The progress came alongside a $3.10 million loss, a $10.92 million royalty liability and a disclosed material uncertainty over ongoing funding.

Tennant Minerals has reported a high-grade maiden resource and further strong drilling at its Bluebird copper-gold discovery, but the annual report carries a material uncertainty over the company’s ability to continue as a going concern. A $2.8 million capital raise completed around year-end provides near-term funding, while further exploration and processing studies remain ahead.

Power Minerals has extended confirmed high-grade rare earth mineralisation at its Morro do Ferro project in Brazil, with a new hole returning 39 metres at 4.42% TREO from 80 metres downhole. Assays from shallower and deeper sections remain pending, leaving the scale and geometry of the zone unresolved.

Lake Resources has secured the primary provincial environmental permit for its Kachi lithium project in Argentina, clearing the way for detailed engineering and financing work. The approval removes a major development hurdle, but FEED, funding, RIGI approval and a final investment decision remain ahead.

Resources & Energy Group has reported a standout 9-metre gold intercept at Goodenough as it prepares a fresh resource estimate. The exploration progress arrives alongside an audited warning that further funding is needed to sustain the business.

Solstice Minerals has extended the Nanadie copper-gold system to at least 1.5km of strike, with deep diamond drilling returning broad mineralisation beyond the current resource boundary. The results include a 169.3m intercept at 0.87% copper and 0.29g/t gold, while more than 40 holes remain awaiting assays.

Redcastle Resources has quantified 6,600 ounces of gold already mined and sitting on its ROM pad, but the inventory remains a Mineral Resource rather than an Ore Reserve. The stockpiles are ready to move, although processing arrangements are still being negotiated and mining is currently suspended.

WhiteRock Lithium has intersected spodumene-bearing pegmatite in all 10 newly reported drill holes at its Spodumene Mountain prospect in Québec. The visual results strengthen the geological case for continuity, but assays and true widths are still pending.

Revolver Resources has taken its Dianne Copper Mine Project from study towards construction readiness, with a larger resource, secured approvals and a forecast $125.7 million pre-tax cash flow. But the restart still depends on project-level funding before a Final Investment Decision can be made.

Boab Metals has increased the Sorby Hills mineral resource by 7% to 50.6Mt, while contained silver rises by 1.6Moz. More Measured and Indicated material now supports the mine plan, although the update does not yet change Ore Reserves, production targets or project economics.