Unlike the other Vaal River operations, the major reef mined at Tau Lekoa is the Ventersdorp Contact Reef. Mining operations are conducted at depths ranging from 800 metres to 1,743 metres, making this one of the shallower AngloGold Ashanti mines in South Africa.
The Tau Lekoa operation comprises a twin-shaft system. Because of the geologically complex orebody occurring at Tau Lekoa, a scattered mining method is used with the orebody being accessed via footwall tunnelling while stoping takes place on strike. There are currently seven shaft levels with an average of 70 panels in operation. Tau Lekoa
employs hydro-electric power as its primary source of energy. Ore mined by Tau Lekoa is processed and treated in preparation for gold extraction at the Kopanang gold plant.
In February 2009, Anglogold Ashanti agreed to sell Tao Lekoa to Simmer and Jack mines.
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