Zambian cobalt refiner that processed part of the cobalt concentrate from DRC Boss Mining.
Sources support the description and the individual connections below. Publication and checking dates belong to the evidence: when it was published, and when this Hub last read it.
Reported means the cited source describes the relationship at its evidence date. Historical relationships refer to an earlier period. Announced agreements may not have been implemented. None of these labels confirms that trade continues today.
ERG and USGS identify Boss Mining cobalt concentrate as feed processed by Chambishi Metals in Zambia; this is a historical operation-to-processor flow.
Part of Boss Mining cobalt concentrate is processed at Chambishi Metals in Zambia.
GTL alloy from Big Hill was refined at Freeport Cobalt; CMSK reportedly sold cobalt concentrate to Freeport Cobalt.