Sasol Mining is in the process of replacing 60% of its coal production through four projects currently under way in Mpumalanga, South Africa. Sasol Mining produces 40-million tons of coal a year from one of the world’s largest underground coal-mining complexes and is developing four different replacement projects, three of them major. A feasibility study of Sasol Mining’s low-cost coal assets in Limpopo province’s Waterberg area, which is destined to be South Africa’s next big coal source, is also under way. More than 90% of the coal mined is used to produce synthetic fuels and a wide range of chemicals.