Two coal seams have been identified at Leeuwpan: upper coal seam (TC) and bottom seam (BC). Bottom coal correlates with seam 2 of the Witbank Coalfield and top coal with seams 4 and 5.

The coal seams at Leeuwpan are primarily interbedded with sandstone, shale and carbonaceous shale. A significant amount of magma intruded as concordant sills of dolerite in the Karoo strata in the Delmas area. Associated with the intrusion of many dolerite sills are a number of thin dolerite dyke structures that crosscut the stratigraphy.

Factors controlling geological and quality continuity are mainly surface weathering, significant variation in seam thickness due to an undulating tillite floor, devolatilisation and weathering due to dolerite intrusions (sills and dykes).

Leeuwpan is 10km south-east of the town of Delmas, 80km east of Johannesburg and 70km south-east of Pretoria in Mpumalanga. It lies alongside the R50 secondary road and is serviced by a rail track that includes a rapid load-out station.

Leeuwpan is an open-cast operation with various reserves mined simultaneously. We estimate that the mine will be in production until 2029, with the mining right lapsing in 2040.

Leeuwpan supplies the domestic market and export market. The mine is equipped with a rapid rail load-out station and this is also the preferred means of coal offtake, although road transport is accommodated. Leeuwpan has a dense medium separator (DMS) plant that mainly beneficiates metallurgical and export thermal coal, a jig plant mostly beneficiating thermal coal (including export quality) and a crush-and-stack (C&S) plant that handles selectively mined thermal coal.