Output upped at Namibia tin, tantalum and lithium mine
Aim-listed Andrada Mining has started implementing an ore sorting circuit at the Uis mine, in Namibia, to increase tin concentrate production from 1 500 t/y to 2 600 t/y.
This is expected to result in an increase in revenue of up to 75% and a reduction in the all-in sustaining costs of the mining operation.
The company is also in the process of optimising a tantalum circuit at Uis, with the first shipment of concentrate from the existing circuit having been sent to Afrimet Resources this month.
Andrada produces about 48 t/y of tantalum concentrate at current run rates, which will increase to 83 t/y following the optimisation.
Tantalum revenue is expected to make up between 3% and 5% of the company’s total revenue in due course.
Meanwhile, Andrada has been producing consistent technical-grade petalite concentrate from a lithium pilot plant installed in the fourth quarter of last year. The company is accumulating a concentrate stockpile while sales into the speciality glass and ceramics markets are under way.
Further development testwork to supply the lithium battery market is also under way. The company is targeting market share across the entire lithium value chain.
Andrada will convert petalite into battery chemicals for long-term supply opportunities.
The company plans to integrate the entire lithium circuit into the current operations, with initial production of 30 000 t/y of technical-grade petalite concentrate expected.
“While Andrada focuses on achieving its ultimate goal of unlocking the scale potential of its deposits, the short-term goal of maximising revenues from current operations remains key to providing free cash flow for the organisation, while simultaneously derisking the flow sheet
,” explains CEO Anthony Viljoen.
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