Latest Groundwater News

Castile Resources has emerged from FY2026 with a larger Rover 1 resource, stronger preliminary project economics and A$9.37 million in cash. The next challenge is converting a A$1.07 billion pre-tax NPV8 study into a funded, permitted mining project.

Southern Hemisphere Mining has reported its strongest Llahuin drilling results yet, but the copper explorer ended FY26 with just $110,027 in cash and a material going-concern uncertainty. The company is relying on further funding, related-party borrowings, asset sales and a possible Chilean VAT refund to keep exploration moving.

Argent Minerals has reported its first laboratory assays from Trunkey Creek, with narrow but high-grade gold intersections beyond a void interpreted as historic underground workings. The results strengthen the case for deeper drilling, while leaving the size and continuity of the mineralisation unresolved.

Coda Minerals has reported average copper and silver extraction of 94.4% and 95.9% respectively from representative Emmie Bluff samples, strengthening the case for its preferred whole-ore chloride leach process. The preliminary laboratory results also suggest Elizabeth Creek site water is suitable for processing, although cobalt recovery, plant-scale performance and capital requirements remain unresolved.

Caravel Minerals has delayed the Caravel Copper Project’s Definitive Feasibility Study from September to the fourth quarter of 2026. The extra time will fund further metallurgical testing, groundwater modelling, environmental updates and a detailed review of the process plant capital estimate.

Antipa Minerals has expanded its Minyari Project resource to 3.6 million ounces of gold equivalent and advanced key pre-feasibility work, including conventional processing and deeper open-pit studies. The progress comes with an auditor-highlighted going-concern uncertainty as the company prepares for further exploration and development spending.

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.

Eastern Resources has placed its Queensland Marengo Gold Project at the centre of its exploration strategy after 54 of 60 rock-chip samples returned more than 0.1 ppm gold, including a peak of 12.3 ppm. The company remains an early-stage explorer, with no JORC Mineral Resource yet defined and A$3.27 million in cash at year-end.

Pilbara Gold has reported strong initial drill results from the Terra Prospect at Roe Hills, including 46 metres at 3.17g/t gold and a narrower high-grade hit of 4 metres at 9.91g/t. The results extend evidence of a mineralised corridor at least 1.5km long, although substantial drilling and follow-up work remain.

Dalaroo Metals has identified coincident geophysical and geochemical features at its Watheroo Cu-Ni-PGE prospect, including a modelled chargeability response of approximately 18 mV/V. The results support plans for deep RC drilling, but the anomalies remain unproven and could have non-mineralisation sources.

Argent Minerals has intersected visible gold in two apparently unmined quartz veins beneath historic workings during the second hole of its maiden Trunkey Creek drilling program. The encouraging visual result remains unquantified until photon assay results establish the grades and true widths.

Prominence Energy has secured an independent resource framework for its Eyre Project, with RISC Advisory estimating 202.8 Bscf of 2U unrisked hydrogen and 9.2 Bscf of helium across 15 leads. The milestone moves the South Australian project towards target selection, potential farm-out discussions and a planned mid-2027 drilling campaign, but the volumes remain undiscovered and highly exploratory.