Latest Mineral Resource Estimation News

Arrow Minerals has reported a maiden Mineral Resource of 185 million tonnes at 42.3% alumina for its Niagara Bauxite Project, alongside strong progress on a scoping study targeting June 2025 completion. The company is also advancing its Simandou North Iron Project with strategic partnerships and metallurgical work.

Alma Metals has released a significant update to its Briggs Copper JV Project resource, incorporating silver for the first time and demonstrating high copper recoveries. The company is progressing a scoping study and preparing for further drilling to expand and upgrade the resource.

Siren Gold has submitted a Mining Permit application for its Sams Creek gold project in New Zealand, supported by a robust Scoping Study and plans for infill drilling to upgrade resource confidence. Exploration momentum continues at its Langdon’s and Queen Charlotte projects, positioning the company for a transition from exploration to development.

Ramelius Resources delivered a record underlying free cash flow of A$223 million in the March 2025 quarter, upgraded its full-year gold production guidance, and advanced a transformational acquisition of Spartan Resources to create a leading Australian gold producer.

Lefroy Exploration has partnered with BML Ventures in a profit-sharing agreement to fast-track mining at the Lucky Strike Gold Project, backed by promising drilling results that validate and expand the resource base.

Great Boulder Resources has reported further shallow, high-grade gold mineralisation at its Eaglehawk deposit within the Side Well Gold Project, confirming the prospectivity of this emerging system with strong recent drilling results.

Everest Metals Corporation has launched a major aircore drilling campaign at its Revere Gold Project while advancing a pioneering rubidium extraction patent at Mt Edon, setting the stage for resource growth and near-term mining at Mt Dimer.

Gorilla Gold has exercised its option to acquire the remaining 49% stake in the Comet Vale Project, increasing its ownership to 100% and positioning itself to capitalise on recent high-grade discoveries.

Sayona Mining's March 2025 quarterly report reveals operational setbacks at North American Lithium due to adverse weather and maintenance, yet the company maintains full-year guidance and progresses a transformative merger with Piedmont Lithium.

OZZ Resources reports encouraging progress at its Maguires Reward gold project, underpinned by a scoping study indicating potential positive cash flow, while maintaining steady exploration across multiple Western Australian tenements with $173,000 cash at quarter-end.

Altamin Limited reports steady progress on its Lazio and Gorno projects, with positive testwork confirming the feasibility of sulphate of potash, lithium carbonate, and boron recovery from geothermal brines. The company moves closer to pre-feasibility studies and environmental approvals amid a tight cash position.

Godolphin Resources has reported multiple high-grade drill results from its Lewis Ponds project, exceeding expectations and highlighting significant potential for resource growth. The company also secured $1 million in new equity funding to advance metallurgical testing and resource upgrades.