Latest Underground Development News

Rox Resources reports strong underground progress and high-grade gold intercepts at Youanmi, reinforcing confidence in hitting production targets on schedule.

Sunshine Metals (ASX:SHN) has delivered strong final assay results from its extensive grade control drilling at Liontown, revealing multiple high-grade gold and silver intercepts that bolster the case for a resource upgrade and a revised mining study scheduled for mid-2026.

AIC Mines reported a strong March quarter with Eloise copper production exceeding guidance at lower costs amid steady progress on its processing plant expansion and Jericho underground development.

Larvotto Resources is progressing the Hillgrove Antimony-Gold Project on time and budget, aiming for mid-2026 production amid rising strategic demand for antimony. The project benefits from grid power, ongoing drilling success, and government support for critical minerals.

Kingston Resources has delivered a fresh batch of high-grade polymetallic assay results from underground drilling at its Southern Ore Zone, Mineral Hill, reinforcing the geological model and underpinning near-term underground mining plans.

Haranga Resources has almost finished a 3,270m underground diamond drilling program at its Lincoln Gold Project in California, uncovering visual evidence of gold mineralisation repeating at depth. Assay results and a maiden JORC Mineral Resource Estimate are expected soon, alongside new exploration targets.

SQX Resources continues to impress with thick, high-grade gold intercepts near surface at its Red Bird project in Arizona, reinforcing open-pit potential ahead of further assays and geophysical work.

Magnum Mining and Exploration has verified exceptionally high-grade gold assays up to 178 g/t Au at its Red Breccia target within the Parker Project, Arizona, reinforcing it as a priority drill target alongside Eagle Nest and NSW Detachment. The company is progressing drill permitting with first-pass drilling planned upon approval.

Perenti Limited has secured a 12-month extension of its underground mining services contract with Regis Resources at the Duketon Operations, increasing contract value by approximately A$180 million and extending the term to at least March 2029 without additional capital requirements.

Core Lithium Ltd (ASX: CXO) has awarded a $50 million surface mining contract to NRW Pty Ltd to restart open pit mining at the Grants deposit within its Finniss Lithium Operation, targeting ore production from May 2026 and spodumene concentrate shipments by December.

Grange Resources has released its 2025 Annual Mineral Resource and Ore Reserve Statement for its Savage River operation, reporting only minor declines due to mining depletion and ongoing refinement of underground plans.

Lunnon Metals reports steady progress at its Lady Herial gold mine alongside the discovery of a new gold-bearing structure northwest of the site, highlighting promising potential for future underground mining.