[2] The company also bought rubber and ivory from the local people, some of whom used it to buy liquor from the Portuguese territory (Angola).
As the colonial system became established the rulers felt the need to assign the ethnic groups to defined territories, where before they had often been mobile.
Often laborers were obtained from the village chiefs through a combination of commissions and sanctions, and were then taken long distances from their homes to the mines.
The Kasai Company was given a 185,000 acres (75,000 ha) concession for plantations to provide more food to their mine workers.
The governor of Congo-Kasaï published regulations that detailed the minimum quantity and quality of rations.