The London-listed miner didn’t reply to a request for remark.
TC/RCs are a gauge of availability for copper concentrates used within the manufacturing of refined copper. A decrease cost alerts shortages, which began with the December closure of First Quantum’s Cobre mine in Panama.
Copper costs hit report highs above $11,100 a ton final month, pushed partly by giant Chinese language smelters’ plans to chop output after disruptions to mine provide. Copper costs have been about $9,500 a ton in morning commerce on Thursday.
(Reporting by Julian LukEditing by Kim Coghill and David Goodman)