Latest Resource Estimation News

Pivotal Metals has reported a substantial 43% increase in the in-pit copper equivalent resource at its Horden Lake Project, reinforcing its position as a leading high-grade, shallow copper deposit on the ASX. The updated Mineral Resource Estimate highlights strong by-product credits and ongoing exploration upside.

Strickland Metals reports a substantial 2Moz AuEq increase in Serbia’s Rogozna Project resources and a near doubling of gold ounces at Western Australia’s Yandal Project, backed by a $5 million strategic placement from Zijin Mining.

Maronan Metals reports robust assay results confirming extensive high-grade silver-lead mineralisation and promising copper-gold intercepts, alongside progress in mine development with a Mineral Development Licence application.

Buxton Resources reports a 345% increase in contained graphite at its Graphite Bull Project and confirms IGO's $5.35 million commitment to expand its Copper Wolf JV interest to 70%.

Boss Energy’s March quarter report reveals a successful ramp-up at its Honeymoon Uranium Project, delivering its first free cash flow and beating cost guidance, while strategic investments and exploration progress position the company well amid a tightening uranium market.

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.

Following its merger with Poseidon Nickel, Horizon Minerals reports a consolidated mineral resource portfolio featuring 1.8 million ounces of gold and 422,700 tonnes of nickel, positioning the company for sustained production and growth.

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.