Latest Definitive Feasibility Study News

Argosy Minerals says laboratory-scale crystallisation testing has demonstrated a potential lithium chloride product yield above 99% at its 12,000-tonne-per-year Rincon project in Argentina. The results remove a key process uncertainty, but the project still depends on engineering completion, financing and a broader Definitive Feasibility Study.

Caravel Minerals has delayed the Caravel Copper Project’s Definitive Feasibility Study from September to the fourth quarter of 2026. The extra time will fund further metallurgical testing, groundwater modelling, environmental updates and a detailed review of the process plant capital estimate.

Aurum Resources has identified high-grade gold outside the current Mineral Resource at its BMT2 prospect in Côte d'Ivoire, including 2.38 metres at 22.01 g/t gold. The results arrive as the company moves towards a Boundiali resource update and Definitive Feasibility Study later this year.

Tesoro Gold has established a maiden 1.28 million-ounce JORC Ore Reserve at Ternera in Chile, entirely within a single open pit. The reserve gives the El Zorro project a 13-plus-year production base, but the next test is funding and permitting a development still at PFS stage.

FireFly Metals has turned a year of aggressive drilling into a substantially larger, higher-confidence Green Bay resource, backed by an August PEA and fresh funding. The next test is execution: feasibility, permits, construction decisions and the capital required to build a mine.

Rox Resources has crossed the line from explorer to mine developer, with Youanmi underground mining underway, the processing plant under construction and a target of first gold in mid-2027. The project is financed on paper, but the A$350 million debt package remains subject to conditions precedent and the construction schedule still has to survive execution.

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.

Investigator Silver has used FY26 to move the Paris Silver Project from feasibility study toward development, backed by A$58.8 million in cash and a maiden ore reserve. The company still faces the harder tests of permitting, financing and construction before its projected silver production can become reality.

US1 Critical Minerals has agreed to transfer six Tanzanian uranium licences to Bradda Head Lithium for up to US$1.8 million, while retaining its Lilombe Project. The deal remains subject to regulatory approvals and other closing conditions.

Turaco Gold has confirmed depth and strike extensions at the Begnopan deposit in Côte d’Ivoire, including several high-grade gold intersections from the first 69 holes of a 113-hole program. The results could support a resource classification upgrade and eventual inclusion of Begnopan in Afema’s ore reserve, but no revised resource or reserve has yet been published.

Tungsten Mining has produced saleable tungsten concentrate grading up to 65.9% WO3 from its Watershed project in Queensland, confirming the conventional processing route planned for its DFS. Marketing samples have now been sent to potential offtakers, although no binding agreements have been signed.

Volt Resources has secured US$5.4 million in fully government-funded support for its US graphite refinery and customer application centre. The award is positive for project funding, but the company’s ASX securities remain suspended as it works with the exchange to satisfy reinstatement requirements.