Secunda Collieries – South Africa forms part of Sasol Coal, the coal division of the Sasol Group of companies, and already produces 29 Mt of coal per annum from its four collieries: Twistdraai, Brandspruit, Bosjesspruit, and Middelbult. Sasol is an integrated energy and chemical company based in Sandton, South Africa. The company was formed in 1950 in Sasolburg.

The successful establishment of this mining complex was achieved only through a unique team spirit in which the central services and the decentralized teams under the leadership of the mine management of each of the four mines played an important role. 

The Secunda mining complex has now reached the optimization phase, during which the mining cost, productivity, safety, and quality of work become as important as production. 

The setting of priorities and problem solving over the long, medium, and short term are essential for improving the performance of the four collieries. 

Management had to adapt to the fast-changing environment during the enormously fast build-up of production. 

According to osti.gov