RE: Post by Ricus Grimbeek30 Apr 2024 11:12
When rumours of Chambishi being brought back into operation first surfaced, the cobalt price was much higher and I'd assumed it was going to be in connection with the Mufulira s l a g project, which is rich in both copper and cobalt. Chambishi is equipped with a Mintek furnace which has been used in the past to process s l a g (from Kitwe) and extract copper and cobalt for further processing. Now with a much lower cobalt price I'm not sure that's likely to be the case. Maybe they are just considering it for the processing of copper cathode, with the option to process cobalt later when the price improves. Chambishi is capable of producing A grade cobalt cathode and was at one time registered with LME, although I think that registration has now lapsed.
Copper sulphide concentrate is around 25% copper as far as I understand it. Leon did give a figure in a recent RNS, saying they had improved the concentrate percentage.