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Specialist consultant ANSTO1 performed metallurgical test-work on six samples from the BHA Project's East Zone, with TREY grades ranging from 227 to 1,632 ppm and MREO to TREO proportions between 22% and 27%.
The Board is reviewing next steps, including alternative leach tests to improve extraction results, as proposed by ANSTO1.
Updates on Cangai Copper Mine and Big One Deposit are expected, which could help secure development partners for the Australian copper assets.
Castillo Copper’s East Zone discovery area has delivered encouraging preliminary metallurgical test-work results, with clays subjected to froth flotation achieving up to 2-3 times REE enrichment with 70% recovery.
The Board has approved appointing a specialist consultancy to further investigate and interpret the potential to extract REE-mineralisation from clays in the East Zone.
Heat maps have identified zones of high TREO/MREO that will be subject to further surface sampling, geophysical surveys and potentially drill-testing.
The board has approved plans to assess optimizing the Big One Deposit in the Mt Isa copper-belt via commissioning an independent engineering contractor and re-formulating optimal plans for a drilling campaign.
The board will rank the exploration potential of several targets then present the opportunity to prospective development partners in the Mt Isa region.
Several global mining groups including Rio Tinto, Glencore and Anglo American have operations proximal to CCZ's ground.