The Fastmarkets copper concentrate treatment and refining charge (TC/RC) index dropped to its lowest level since the start of 2020 in the week ended Friday May 1.
The benchmark index fell to $52.20 per tonne / 5.22 cents per lb on Friday, from $54.90 per tonne / 5.49 cents per lb a week ago.Notably, the TC spread between the buying level of smelters and traders has widened to $6.33 per...