HARARE, April 23 (Reuters) - Premier African Minerals (PREM.L), opens new tab is pursuing a lithium concentrate supply deal with commodities giant Glencore Plc (GLEN.L), opens new tab, it said on ...

The changes are part of a wider shake-up up in which Glencore — also a big mining house — will combine its copper and zinc trading businesses and also merge its ferroalloys and nickel ...