MINING.COM | Alrosa, the world’s top diamond miner by output, has received approval from the regulatory body in Russia to open up and develop reserves at the upper horizons of the International (Inter) underground mine.
According to the company, production is expected to start in Q4 2020. Underground mining at the International kimberlite pipe started in 1999.
The first stage of production implied mining at the depth from 200 m to 560 m. Under the second stage, the extraction to be carried from 155 m to 200 m and at the deep horizons of the deposit.
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