Spot trading of copper concentrates was quiet in the last week of December, with fewer purchases from both smelters and traders.
Fastmarkets' copper concentrate treatment and refining charges (TC/RCs) continued to rise, with offers for copper concentrates to smelters remaining in the mid to high $40s, while smelters bid at $50 per tonne for clean qualities. A combo deal of Bisha and clean qualities was reported to be settled in the low $50s....