Comptoirs miniers des exploitations minières du Burundi, or COMEBU, is a private enterprise that mines coltan and other minerals.

They were supposed to work for COMEBU, but it gave them very low prices compared to unofficial traders.

[5] Between 1987 and 2016 COMEBU had 200 employees in Kabarore and could only exploit 400 kilograms (880 lb) a month, or 4.8 tonnes per year.

He accused François Uwiragiye, an investor in the mining sector, of enriching himself at the expense of the people.

Large machines were excavating the open cast coltan mine, while miners were working with picks and shovels at the foot of the pit.