South African manganese mining company Jupiter Mines announced on Tuesday that it has produced a 99.9% pure sample of high purity manganese sulphate monohvdrate (HPMSM) using the Northern Cape’s manganese ore and bringing into service an internally developed hydrometallurgical production process. Inclusion of the battery grade manganese in the cathode of electric vehicle batteries introduces cost efficient energy density and potential safety enhancements, Jupiter stated in its media release to Mining Weekly.