Latest Mineral Resource Estimation News

Celsius Resources has struck a binding deal to offload its 95% stake in the Opuwo cobalt-copper project in Namibia to Chinalco (Xiong’an) Mining for US$15 million, freeing capital to focus on its Philippine copper-gold assets amid ongoing arbitration.

Andean Silver has significantly expanded its Cerro Bayo silver-gold project resource, increasing the Indicated Mineral Resource by 230% to 60 million ounces silver equivalent and raising the total resource to 136 million ounces AgEq. This upgrade sets the stage for upcoming feasibility studies and a major drilling campaign.

Develop Global has locked in a major A$70 million mining contract for its Pioneer Dome lithium project, setting the stage for first sales in the December quarter of 2026. Strong drilling results and a binding offtake deal with Trafigura underpin the project’s fast-tracked development and cashflow outlook.

Lefroy Exploration has launched a scoping study for its Mt Martin Gold Project, following an updated resource estimate of 460,000 ounces. The study, funded by a recent $3.6 million placement, aims to assess development options by September 2026 while mining operations at Lucky Strike prepare to resume.

Lunnon Metals has reported robust assay results from a 36-hole infill drill campaign at its Hustler gold deposit, underpinning an imminent Mineral Resource update and advancing permitting and mining optimisation activities.

West Coast Silver has kicked off a major geophysical survey at its Elizabeth Hill project, aiming to uncover repeats of its historically high-grade silver system along 4 kilometres of the Munni Munni Fault Zone.

IRIS Metals posted a $22.3 million loss for FY26, driven by major impairments on exploration assets and elevated share-based payments. The company pivots away from Edison and Tin Mountain projects, focusing on lithium-rubidium in South Dakota and tungsten in Montana.

Orbminco Limited's latest infill drilling at Majestic North delivers standout shallow gold grades, setting the stage for a resource upgrade and advancing mining studies.

Asara Resources has adjusted its $60 million institutional placement after Barbet LLC FZ reduced its subscription significantly, with the balance placed to other investors to keep the raise on track. The funds will accelerate drilling and development at the Kada Gold Project in Guinea.

New Talisman Gold Mines commissioned its processing plant and secured commercial offtakes while reporting a $2.26 million net loss in FY26. The company is refocusing on geological modelling and targeted drilling to boost resource confidence and production.

Toubani Resources (ASX: TRE) is acquiring a near 20% equity interest in Avanti Gold (CSE: AGC) via a share swap, gaining exposure to the Misisi Gold Project in the DRC with a 3.1 million ounce inferred resource.

Astral Resources has reported significant deep gold mineralisation extending well below the current Theia Deposit resource at its Mandilla Gold Project, alongside ongoing in-fill drilling to upgrade open pit resources.