West Cobar Metals Limited Uncovers High-Grade Copper-Antimony Targets at Bulla Park, Boosting Bulk Mining Potential and Resource Expansion

Thursday, July 17, 2025
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8:17 am
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West Cobar Metals Limited updates progress at its Bulla Park Project, uncovering promising shallow targets with higher copper, antimony, and silver grades. Enhanced geophysical and drill data reveal expanded mineralisation zones, with additional RC and diamond drilling planned to explore these exciting opportunities further.

West Cobar Metals Limited has advanced its exploration work at the Bulla Park copper-antimony-silver deposit by identifying new high-grade, shallow targets through extensive surface mapping, sampling, reinterpretation of geophysical data, and a reassessment of past drilling results. The company’s recent integration of gravity imagery with drilling data has pinpointed significant areas of untested mineralisation adjacent to a dominant west-southwest trending fault. Chargeability induced polarization (IP) data further supports the presence of higher-grade zones at depth. The deposit, situated 110 km west of a major regional mining hub in central New South Wales, currently holds an Inferred Mineral Resource of 20 million tonnes averaging 0.58% copper equivalent. This multi-metal resource comprises copper, antimony, and silver, calculated using a copper equivalent formula that factors in current metal prices and robust recovery rates established by previous metallurgical testwork—reporting recoveries of 94.6% for copper, 82.6% for antimony, and 84.1% for silver. Technical interpretations reveal that both the thickness and grades of mineralisation increase towards the principal WSW trending fault, with strong siderite-barite alteration and stockwork veining serving as further indicators of potential extensions of the mineralised zones. The geological data imply that the mineralisation extends north and east at shallow depths, which could support bulk mining methods such as open-pit operations given the thickness of the deposit exceeding 60 meters. In response to these findings, West Cobar Metals Limited has outlined a clear priority for further exploration. The upcoming drilling program will include deep diamond drilling to test a chargeability anomaly (with a 900-meter proposed hole) and to follow target zones along and beneath the fault, as well as reverse circulation drilling to explore the shallow extensions. The company is continuing to refine its drilling strategy by integrating updated geological, geophysical, geochemical, and metallurgical datasets. From a market perspective, the news presents both bullish and bearish elements. The bullish sentiment stems from the identification of new high-grade targets, the confirmation of significant untested mineralisation adjacent to a major fault, and the strong preliminary testwork outcomes. These factors indicate potential for sizeable resource expansion and improved project economics. Conversely, the bearish perspective cautions that the project remains in the exploration stage, and further drilling is required to delineate the resource. Additionally, uncertainties inherent in forward-looking geological and metallurgical estimates introduce an element of risk for investors.

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