Zesco is proceeding with its legal pursuit of Copperbelt Energy Corporation (CEC) over payments from Konkola Copper Mines (KCM) following the collapse of talks to extend a long- term power supply contract. In September 2019, Zesco announced its intention to sue CEC over a $45m bill for power supplied to KCM, Zambia’s biggest underground mine. Zesco claims that CEC has failed to pay for electricity supplied under their Bulk Supply Agreement (BSA), which expired at the end of March 2020.