White Energy has completed an eight-hole diamond drilling program at its Specimen Hill Project in Central Queensland, uncovering signs of multiple mineralisation styles including porphyry, IOCG, and skarn systems. Assay results are pending, but early data suggest a large and complex copper-gold system.
- Eight-hole diamond drilling completed at Specimen Hill
- Indications of multiple mineralisation styles including porphyry and IOCG
- Second farm-in milestone achieved, raising interest to 76%
- Ongoing geophysical and geochemical surveys to refine targets
- Exclusive global agency agreement secured for coal briquetting technology
Specimen Hill Drilling Highlights Complex Copper-Gold Mineral Systems
White Energy Company Limited (ASX:WEC) has wrapped up an eight-hole diamond drilling campaign at its Specimen Hill Project near Biloela in Central Queensland, revealing widespread alteration and indications of copper-gold mineralisation. Preliminary geological observations point to multiple mineralisation styles consistent with porphyry, iron oxide copper gold (IOCG), and skarn systems. Assay results remain pending but are expected to provide critical insights into the extent and grade of mineralisation.
The Specimen Hill Project, held under a farm-in agreement with Tamar Minerals (Acquis: TTAU), currently sees White Energy holding a 51% interest, having satisfied the first farm-in milestone through $1 million of exploration expenditure. The company has now incurred a further $1 million, meeting the criteria for a second 25% interest, which would lift its stake to 76%, though formal notice of completion is yet to be issued. This progressive earning of interest underscores White Energy’s commitment to advancing the project through systematic exploration.
Early Exploration Suggests Large-Scale Metasomatic Iron Alkali-Calcic System
Fieldwork since 2023, including detailed aerial magnetic surveys and ionic soil sampling, has delineated a large and complex hydrothermal system characterised by metasomatic iron and alkali-calcic (MIAC) alteration. This system potentially spans tens to hundreds of kilometres, producing a continuum of deposit types such as IOCG, intrusive oxide-apatite (IOA), porphyry, and skarn deposits. These styles are known to host a variety of critical base and precious metals, bolstering the project’s prospectivity.
Rock chip sampling in 2025 returned copper grades up to 1.32% and gold values peaking at 13.7 g/t, while historic samples have reported even higher grades, including 20% copper and 50 g/t gold. The recent drilling program targeted geophysical and geochemical anomalies identified through induced polarisation (IP) surveys, magnetic data, and ionic sampling, testing five distinct targets within the central project zone.
Drilling Program Provides Geological Insights Ahead of Assays
The drilling intersected a variety of lithologies, including metasediments, andesites, volcaniclastics, and breccias, with widespread alteration minerals such as epidote, magnetite, titanomagnetite, chlorite, sericite, and hematite observed. Notably, mineralisation included chalcopyrite, bornite, pyrite, arsenopyrite, and rare native copper occurrences. One hole (C25MR08) reached 420.5 metres and encountered stratabound and replacive mineralisation within the Three Moon Conglomerate Formation, resembling manto-style deposits possibly distal to a porphyry or IOCG system.
These preliminary geological logs, combined with magnetic susceptibility and petrology data, will calibrate the detailed helicopter-borne magnetic/radiometric survey (HeliMag) completed in 2024, guiding further geophysical surveys and exploration drilling. The central portion of the project area, where drilling was concentrated, contains numerous surface copper occurrences and offers the best access for ongoing work.
White Energy CEO Greg Sheahan remarked, "Drilling by White Energy’s subsidiary, Amerod, within the Specimen Hill Project area has revealed further evidence of a system or systems of alteration supportive of mineralisation. We look forward to receiving the core sample results and assays to verify our thinking and modelling of the mineral systems at play. Improved knowledge of the systems will guide further exploration in an area which we believe has the potential to host a major copper and gold deposit."
Broader Exploration and Coal Technology Developments
Alongside Specimen Hill, White Energy continues to advance other Australian exploration projects, including the Tindal Project in the Northern Territory, where ionic soil sampling and geophysical interpretation are ongoing to identify base, precious, and critical mineral targets. The company also recently secured an exclusive worldwide agency agreement with Illinois-based K.R. Komarek Inc. to market briquetting machines using its proprietary Binderless Coal Briquetting (BCB) technology, enhancing its coal technology division. This technology upgrades low-value, high-moisture coals into higher-energy briquettes without binders, offering environmental and operational benefits.
White Energy’s 51%-owned River Energy JV Limited is actively supporting commercial-scale BCB trials in South Africa, aiming to valorise coal tailings and reduce rehabilitation costs. These diversified activities reflect a dual focus on mineral exploration and coal technology innovation.
Financially, the company reported a cash balance of $1.1 million at quarter-end, with ongoing expenditure focused on exploration and corporate costs. White Energy is pursuing recovery of $2.5 million owed from the sale of its former subsidiary’s assets in Kentucky, which would bolster funding for its operations. The company has also raised capital recently, including a $3.2 million entitlement offer, to support its exploration and technology initiatives, as detailed in its recent $3.2M entitlement offer and Kentucky asset sale negotiations.
Bottom Line?
Pending assay results will be pivotal in confirming Specimen Hill’s potential, setting the stage for targeted drilling and resource evaluation in a highly prospective copper-gold province.
Questions in the middle?
- Will assay results confirm the presence of economically viable copper-gold mineralisation at Specimen Hill?
- How will White Energy balance advancing early-stage exploration with its coal technology commercialisation efforts?
- What impact will regional land use plans, including wind farm and pumped hydro developments, have on future mining at Specimen Hill?