Mining Company Finds High Grade Copper At ... ZambiaInvest
Mining Company Finds High Grade Copper At Kalaba CopperCobalt Project November 4, 2015 Ortac Resources Limited (AIM:OTC), an exploration and mine development company, has recently announced that high grades of copper have been found at the Kalaba CopperCobalt project in Mwinilunga, Zambia''s north western region.