After the Belgian Congo took over from the Free State in 1908, the CSK handed over its administrative powers to the provincial government.

The Compagnie du Katanga was founded in 1891 to explore the southeast of the Congo Free State.

[2] In 1900-1901 the CSK signed an agreement with the entrepreneur Robert Williams and the British Tanganyika Concessions (TCL).

The CFK was to build rail links to the region where the city of Elisabethville (Lubumbashi) would be founded.

It was also to participate in building a railway to carry material and equipment to the mines and to take away the extracted minerals.

[2] UMHK was founded as a joint venture between the Compagnie du Katanga, the CSK and TCL.

[5] The BCK was founded on 31 October 1906 by the CSK', the Congo Free State and the Société Générale de Belgique to build a rail link from Bukama in Katanga to Port Franqui on the Kasai River, from where mining products could be shipped down to Léopoldville.

After World War I (1914–1918) the CSK provided support of demography, geology, forestry, agriculture, colonization, veterinary medicine and experimental farming.