Ann: Nifty Copper Project Restart Financing Update, page-282

Absolute rubbish ploughboy, Majority of copper deposits are polymetalic. Copper, nickel, gold, cobalt, etc, which is why many use concentrators. It also comes down to ore type and abilities of the directors to make a successful operation. MLX found out the hard way when you have personnel that are not up to the task. In CYM's case Barry, Gary & Wayne successfully ran Finders Resources where they leached VMS sulphides where the ore contained chalcopyrite and chalcocite. The Lerokis orebody contained mainly covellite and chalcopyrite. In CYM's case the directors are experts in their field.