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Highlights
- Inferred resource of 19.7Mt defined with copper, antimony, and silver.
- Exploration target set at 30–50Mt with higher copper equivalent grades.
- Metallurgical testing shows strong recovery rates and clean concentrates.
The mining sector continues to play a vital role in powering global industrial demands, particularly as the world transitions to more sustainable and technologically advanced infrastructures. In this context, West Cobar Metals (ASX:WC1) has taken a strategic leap forward by defining a maiden inferred mineral resource at its Bulla Park project, located in the mineral-rich Cobar Basin of New South Wales, Australia.
This initial resource estimate outlines 19.7 million tonnes of copper equivalent mineralization. The composition includes 0.30% copper, 0.10% antimony, and 4.7 grams per tonne of silver, defined at a 0.21% copper cutoff grade. These figures position Bulla Park as a compelling development-stage project within Australia's diversified mining landscape.
One of the most notable aspects of the Bulla Park project is its expansion potential. The mineralized zones remain open both along strike and at depth, suggesting considerable room for further growth. On the back of extensive drilling and geophysical studies, West Cobar Metals (WC1) has outlined an ambitious exploration target ranging from 30 to 50 million tonnes with copper equivalent grades between 0.47% and 0.66%.
Bulla Park also shows strong metallurgical fundamentals. The mineralized zone exceeds 60 meters in thickness, making it suitable for bulk mining approaches, such as open-pit methods. Preliminary metallurgical tests have revealed the potential to generate two key products: a copper-silver concentrate and a separate antimony product. This dual-product capability adds flexibility and market resilience to the project’s future prospects.
Geochemically, the silver within the deposit is largely hosted in tetrahedrite, with minor occurrences of chalcopyrite and stibnite. Test work has demonstrated favorable processing outcomes, yielding high-quality concentrates with minimal impurities. Notably, while arsenic is present, it can be effectively managed through the leaching process. Current metallurgical results indicate strong recovery rates—94.6% for copper, 82.6% for antimony, and 84.1% for silver—offering a robust baseline for ongoing optimization.
The Bulla Park project is strategically located in a region known for its long-standing mining heritage. With a large inferred resource, exploration upside, and promising metallurgical characteristics, the project reinforces West Cobar Metals' (WC1) position within Australia’s evolving mining sector. As exploration and development continue, Bulla Park is shaping up to be a noteworthy asset in the broader resource landscape.
