 The concession provided to Abir lay in the north of the country and was one of nine commercial concession areas established by Leopold in the Congo Free State. The concession was bounded to the north by the Congo River and the Société Anversoise concession, to the east by the Lomami River and the Lomami Company concession and to the west by the Lulonga Company concession which straddled the Lulonga River, into which the Maringa and Lopori flowed. To the south lay the Crown Domain (Domaine de la Couronne), the private property of Leopold, which comprised the best land in the Free State and was the richest in rubber.
