Fastmarkets' benchmark copper concentrate treatment and refining charge (TC/RC) index rose for the third consecutive week on Friday April 30.
At $26.90 per tonne / 2.69 cents per lb,
the index has reached its highest level in a month and has rebounded from its record lows of $21.90 per tonne / 2.19 cents per lb on April 9.
Smelter...