Based in Secunda, South Africa, Secunda Synfuels Operations receives coal from five mines in Mpumalanga.  After being crushed, the coal is blended to obtain an even quality distribution. Electricity is generated by both steam and gas and used to gasify the coal at a temperature of 1300°C.

This produces syngas from which two types of reactor - circulating fluidised bed and Sasol Advanced Synthol™ reactors – produce components for making synthetic fuels as well as a number of downstream chemicals. Gas water and tar oil streams emanating from the gasification process are refined to produce ammonia and various grades of coke respectively.