Fastmarkets' benchmark copper concentrates treatment and refining charge (TC/RC) index rose on Friday May 22 for first time since the beginning of April after more smelters returned to the spot market this week.
The index rose to $51.6 per tonne/ 5.16 cents per lb, from $49.6 per tonne/ 4.96 cents per lb a week ago, when it hit the lowest level in eight months.Most Chinese smelters spoken to by Fastmarkets continue to buy parcels in the low-mid $50s / 5 cents for June-July arrival, but some August-September cargoes were also reported sold...