LSE-listed Acacia Mining’s Tanzanian operations are continuing to operate normally, while a second Presidential Committee nears completion of its investigation into economic and legal issues associated with historic exports of gold and copper concentrates. Tanzania’s Ministry of Energy and Minerals on March 2 issued a directive banning the export of all gold, copper, nickel and silver concentrates in an effort to encourage local beneficiation. The government has also instituted investigations into the export of such mineral concentrates.