Our operations

Seriti was incorporated to acquire the New Vaal, New Denmark and Kriel mines from Anglo American, as well as various life extension coal resources and closed collieries. This acquisition positions Seriti as a major South African mining company responsible for supplying approximately 24Mtpa of thermal coal to Eskom’s Lethabo, Tutuka and Kriel power stations, which collectively generate about 23% of the country’s electricity.

Kriel Colliery


Situated 45km south of eMalahleni (formerly Witbank), Kriel Colliery was established in 1975 to supply coal to Eskom’s Kriel Power Station.

Kriel’s underground operation is mined by means of the mechanised board- and-pillar method, while its opencast operation mining takes place using dragline as well as truck and shovel methods.

Over the last five years, Kriel has won the Anglo American CEO Gold and Silver Safety Award for a large operation, the Golden Loerie Award for its innovative Snakes Alive safety initiative, the Integrated SHE Platinum Five-Star NOSA award and many others.

The colliery employs just over 1,000 people and produces around 5Mtpa of thermal coal. The Kriel colliery has sufficient current and additional coal resources to supply Eskom’s Kriel Power Station until 2029.

New Denmark Colliery


Commissioned in 1982, the New Denmark Colliery is situated in the Highveld coalfields, about 30km north of Standerton, Mpumalanga.

One of the deepest coal mining operations in South Africa, New Denmark is a mechanised mine, with the bulk of production being sourced from one extraction unit using longwall mining methods.

The mine has an impressive safety record and has won the Anglo Coal Chairman’s Safety Shield for its consistent improvement, as well as the Anglo American CEO Safety Award for the best safety record of all Anglo American operations worldwide.

New Denmark employs over 850 permanent employees and 600 contractors, and supplies 5Mtpa of thermal coal to Eskom’s Tutuka Power Station. The mine has sufficient current and additional coal resources to supply the power station until 2039.

New Vaal Colliery


Established in 1983 to supply Eskom’s Lethabo Power Station, the New Vaal Colliery is situated on the banks of the Vaal River in the Maccauvlei area immediately south of Vereeniging in the Free State Province.

The operation utilises opencast strip mining methods to mine the remnant coal pillars that was a result of the underground extraction mining methods practiced in the area in the 1960’s.

The mine currently produces at a rate of 17Mtpa and aims to continue the supply to Eskom’s Lethabo Power Station from additional coal resources until 2039.

Locality Map

Where we operate