The Chamber of Mines of Zambia (CMZ) has launched legal action challenging an Energy Regulation Board (ERB) decision to raise electricity tariffs for mining companies (AE 279/8). Court documents named the applicants as Lumwana Mining Company, Kansanshi Mining, Lubambe Copper Mines, Mopani Copper Mines, Chibuluma Mines, NFC Africa Mining and Chambishi Metals.