Latest Heap Leach News

Silver Mines has delivered promising exploration results from its Calico North and Kramer Hills projects in California, with standout silver and barite assays supporting imminent drilling campaigns.

Cavalier Resources’ 2026 Pre-Feasibility Study update boosts the Stage 1 NPV of its Crawford Gold Project to A$77.2 million at A$6,500/oz gold, reflecting resilience amid supply chain pressures. The project maintains its ore reserve and pit design, with financing negotiations advancing.

Sun Silver has engaged global engineering firm Ausenco to lead critical concept and scoping studies for its Maverick Silver Project in Nevada, aiming to underpin a maiden Scoping Study by late 2026. The move leverages Ausenco’s North American precious metals expertise and comes as silver prices hover near US$77 an ounce, bolstering project economics.

Critica Limited has achieved a significant breakthrough at its Jupiter Rare Earth Project, lifting magnet rare earth recovery to approximately 81% and total rare earth oxide recovery to around 71% through pilot plant optimisation. This advance strengthens the foundation for its ongoing scoping study and downstream processing plans.

49 Metals Limited has secured $10 million through its IPO to fund a detailed exploration campaign in Nevada’s Walker Lane Trend, including an 8,000-metre drilling program at the Gold Mountain project targeting high-grade gold zones.

Marmota Limited is set to embark on a substantial drilling campaign targeting the southern Mainwood extension of its Greenewood gold discovery in South Australia's Gawler Craton, aiming to expand the mineralised strike to 2km.

Legacy Iron Ore has boosted its Mt Celia gold resource by over half, now holding 390,150 ounces, underpinning its ongoing heap leach pre-feasibility study and signaling potential for further growth.

West Cobar Metals (ASX: WC1) is progressing its U.S.-focused critical minerals strategy by formally engaging with U.S. government funding programs and partnering with Washington D.C.-based advisor GreenMet. The company’s Australian projects contain key minerals aligned with U.S. supply chain priorities, while it evaluates potential U.S. acquisitions to expand its footprint.

Pacgold Limited (ASX: PGO) has marked a significant milestone by producing its first gold at the White Dam Gold Project in South Australia, transitioning from an explorer to a gold producer. The company is progressing with plant upgrades and plans for pad expansion to increase production capacity.

Saturn Metals Limited has announced exceptional high-grade gold assay results from its Apollo Hill Gold Project in Western Australia, including a record 1m intercept grading 277g/t Au. These findings highlight significant untapped northern extensions beyond the existing 2.24Moz Mineral Resource and support ongoing exploration and resource growth.

OzAurum Resources reports exceptional heap leach test results at Mulgabbie North, confirming rapid gold recovery and advancing a low-capex development strategy with near-complete plant refurbishment.

Sun Silver Limited has launched an ambitious 2026 drilling campaign at its Maverick Silver Project in Nevada, deploying four diamond core rigs to upgrade and expand its mineral resource while advancing metallurgical studies.