Latest Metallurgical Testwork News

Petratherm Limited has confirmed a significant titanium-rich heavy mineral sands discovery at its Muckanippie Project, with drilling extending mineralisation over 15 square kilometres and a recent $8.1 million placement to accelerate development.

Barton Gold Holdings reported a 120,000-ounce gold resource increase at Tunkillia and uncovered exceptional high-grade silver at Tarcoola’s Tolmer prospect, alongside a $3.1 million half-year profit and accelerated feasibility studies.

Australian Strategic Materials (ASM) has made significant strides in its mine to metals strategy during the March 2025 quarter, including plans for US expansion and progress at its Dubbo Project and Korean Metals Plant. The company is positioning itself as a key alternative supply chain amid escalating geopolitical tensions and export restrictions.

Marmota Limited reports a standout March quarter with a 73% uplift in gold grades at Aurora Tank, bonanza grades at Campfire Bore, and a new high-grade titanium sands discovery at Muckanippie, backed by a $5 million capital raise.

Rumble Resources advances its Western Queen Gold-Tungsten Project towards late 2025 production through a joint venture with Bain Global and MEGA Resources, while reporting significant high-grade gold and tungsten assay results. The company also expands its portfolio by acquiring 100% of the Thunderstorm Gold Project and initiates a scoping study on the Earaheedy Zinc-Lead-Silver Project.

Astral Resources has updated its Mandilla Gold Project resource to 1.43 million ounces and completed the acquisition of Maximus Resources, positioning itself for a major development milestone with a Pre-Feasibility Study due in June 2025.

James Bay Minerals reports a maiden JORC Mineral Resource Estimate of approximately 1.7 million ounces gold equivalent at its Independence Gold Project in Nevada, alongside the start of metallurgical testing and a new drilling campaign targeting resource growth.

Octava Minerals reports promising high-grade antimony intercepts at Yallalong and confirms extensive rare earth and lithium mineralisation at Byro, with metallurgical testwork now underway.

Golden Deeps Ltd reports significant high-grade critical metals discoveries at its Nosib prospect in Namibia and secures an 80% stake in the Central Otavi Critical Metals Project, boosting its strategic position in the critical metals sector.

St Barbara Limited confirms a robust Simberi Expansion Project with a 13-year life of mine plan delivering 2.2 million ounces of gold and annual production exceeding 220,000 ounces from FY28. The project’s strong economics and infrastructure upgrades position it as a significant growth driver amid regulatory uncertainties.

Moab Minerals reports robust uranium mineralisation from its Manyoni Project in Tanzania and progresses exploration in Colorado’s Uravan Belt, supported by a recent $500k capital raise.

Critica Limited has declared a maiden Inferred Mineral Resource Estimate for its Jupiter Project, establishing it as Australia’s largest and highest-grade clay-hosted rare earth deposit. Early metallurgical testwork shows promising beneficiation results, positioning the company as a strategic player in the rare earths sector.