The story
The Société des Chemins de fer Léopoldville-Katanga-Dilolo (LKD) was created through a 16 September 1927 agreement between the government and BCK, and was an administrative and financial vehicle.
The government was its main shareholder, and granted it concessions for the three lines: Bukama–Port-Francqui, Tenke–Dilolo and Port-Francqui–Léopoldville.
Construction and operation of the lines was subcontracted to BCK.
BCK was responsible for all the track, and operated the network and equipment as a whole.
The 523 kilometres (325 mi) line from Tenke to Dilolo was completed in 1931.
At Dilolo the BCK network connected to the Benguela railway, which carried goods to the port of Lobito on the Atlantic.
In 1952 LKD merged with Compagnie de Chemin de fer du Katanga CFK to form the Compagnie des Chemins de fer Katanga-Dilolo-Léopoldville (KDL).
KDL held the rail network concessions in Katanga, while BCK was the operator.
From Wikipedia’s article on Société des Chemins de fer Léopoldville-Katanga-Dilolo, shared under CC BY-SA 4.0.3