Nifty production increases in third quarter
PERTH (miningweekly.com) – ASX-listed copper miner Aditya Birla has reported a 95% increase in copper production during the third quarter ended December, compared with the previous quarter, as operations at the Nifty mine, in Western Australia, ramped up.
Mining operations at Nifty resumed in July last year, after mining was suspended in March following the discovery of a sinkhole.
During the December quarter, the Nifty mine delivered 359 670 t of ore, up 49% on the previous quarter, while processing at the operation increased by 102%, to 374 176 t.
Copper production for the quarter reached 5 299 t, compared with the 2 714 t produced in the September quarter. Compared with the previous corresponding quarter, production and sales decreased by 54% and 4%, respectively, owing to a reduction in mining and milling volumes at Nifty, and a reduction in average copper grades subsequent to the restart of operations, post the sinkhole.
The Nifty oxide operation continued to remain under care and maintenance during the quarter under review.
In January, Aditya Birla downgraded its production guidance for the full year to March, from between 16 000 t and 18 000 t, to between 13 000 t and 15 000 t of copper. The new guidance was the result of a delay in the commissioning of new stopes, owing to changed ground conditions at the Nifty mine, which required alternative safety plans.
The changed ground conditions also necessitated the deferment from short-term to life-of-mine plans for higher-grade stopes from the South Limb ore block. Aditya noted that replacement contingency stopes have been scheduled and now required development.
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