A massive technological blast was performed at the floor of -240 meter of Yuzhnaya mine of Vysokogorskiy ore mining and processing enterprise JSC (part of Evraz Group). This resulted in beating over 420,000 tons of ore, which should provide the miners with production for more than five months.

It took the company’s technicians a week to charge the boreholes; they used around 1 ton of explosives altogether. On the day of the blasting operation, all the equipment (including the lifts, the pumping, and the ventilation) was put out of operation, and all the workers had to leave the lower floors.