Ore body geometry determines whether mining takes place underground or in an open pit. In underground mines we reached the ore by means of ramps and drifts. Holes are drilled in the ore and filled with explosives in the same way as in open pit mines. The mined ore is then driven to a crushing plant and crushed into smaller pieces before onward transport to the concentrator where it is crushed again to form fine sand and the metal-rich components are separated by a series of refined methods.
The metal rich minerals are dewatered and filtered to form fine concentrates which are sent to the smelting plant for further processing. The processes in our concentrator are largely carried out through remote control, all carefully supervised from the control rooms.