Mbuji-Mayi has seen better days. Once the home of DR Congo's state diamond company MIBA, the town used to be filled with free-spending miners and their families, who brought a giddy touch of prosperity to remote Kasai-Oriental province. But at the end of last century, MIBA the Bakwanga Mining Company began to go into a long downward spiral, taking the town with it. Poor management, crumbling infrastructure, embezzlement and looting,.