Latest Mineral Resource Estimation News

WA1 Resources has ended FY26 with a larger, higher-confidence Luni niobium resource, encouraging processing results and A$123.8 million in cash. The project now moves towards a targeted Q4 CY2026 Pre-Feasibility Study, with permitting, funding and commercial viability still ahead.

Great Boulder Resources has used FY2026 to make the leap from gold explorer toward producer, acquiring Peak Hill and securing a 481,000-ounce resource alongside its 1.02 million-ounce Side Well project. The strategic shift came with a A$9.93 million loss, a heavily expanded share count and a clear near-term test: whether 40,000 metres of drilling can support development by late 2027.

Lefroy Exploration is considering folding the high-grade portion of its Burns deposit into the Mt Martin Scoping Study, broadening the development case while pushing delivery into the December quarter. At Lucky Strike, a newly granted licence removes one hurdle but several approvals still stand between the mine and a targeted early 2027 restart.

Anson Resources has completed environmental baseline surveys at its Yellow Cat uranium-vanadium project in Utah, clearing a stated hurdle ahead of planned drilling. The next test is whether twin holes can validate historical high-grade results and support a maiden JORC 2012 resource 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.

Parabellum Resources has established a maiden 4.8 million tonne Mineral Resource Estimate at its Miandetta prospect in central NSW, containing 37,000 tonnes of nickel and 1,920 tonnes of cobalt. The shallow resource is a meaningful exploration milestone, but remains preliminary and relies on several conceptual assumptions.

Magnum Mining has completed more than 10,000 metres of drilling at its Piracanjuba North rare earths project in Brazil and is shifting its main effort to the 32.5km² Plateau Zone. A further 2,000-metre diamond drilling phase will run alongside independent resource, radiological and metallurgical studies, although delayed assay turnaround creates a risk to the company’s November timetable.

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.

Forrestania Resources has reported wide, high-grade gold intersections from 15 additional reverse circulation holes at British Hill in Western Australia. A diamond rig is now being mobilised to test below current RC drilling limits as the company works towards a larger mineral resource estimate.

Alchemy Resources finished FY2026 with a sharply wider loss, lower cash and a smaller asset base, even as drilling delivered strong copper-gold results at Yellow Mountain and high-grade iron results at Valley Bore. The explorer has reshaped its portfolio, but its next phase still depends on exploration success and further funding.

Skylark Minerals has pushed its Côte d’Ivoire gold strategy forward, with M’Basso now extending across about 2km of strike. But the annual report also highlights a material uncertainty over funding, after the company ended the year with A$4.85 million in cash and a A$3.01 million loss.

Sky Metals has used FY2026 to move Tallebung from exploration toward development, combining more than 500 drill holes with strong ore-sorting results and progress into NSW’s environmental approval process. The advance came alongside a A$5.37 million loss and continuing reliance on equity funding.