Rio Tinto’s Diamond Production Rises as Underground Mining Advances
Rio Tinto reported an 18% year-on-year increase in diamond output for the fourth quarter of 2023, reaching 775,000 carats. The rise follows efforts to ramp up production after addressing ground subsidence issues and transitioning to underground mining at the Diavik mine’s A21 pit. The miner completed the first phase of underground development at A21, where open-pit operations concluded in late 2023. Rio Tinto is now scaling up processing in the area to achieve commercial production.
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