It is navigable for 137 kilometres (85 mi) from Bombimba to where it enters the Congo River.

[4][a] He estimated it would provide 125 miles (201 km) of river course accessible to trade, and said it was the commercial reserve of the Bakuti tribe.

[5] Stanley speculated that the Ikelemba, Lulungu (Lulonga River) and Mohindu might be connected by a system of channels running through a low jungly forest.

After this results were poorer, and the company suffered from the fall in rubber prices.

In 1910 all of the company's assets were transferred to the newly formed Société Equatoriale Congolaise Lulonga-Ikelemba.