China’s top copper smelters hike Q4 treatment charge floor price to 4-year high on ample supply

China’s leading copper smelters have set the floor price for copper concentrate treatment and refining charges, or TCs/RCs, for the fourth quarter at $93/mt and 9.3 cents/lb respectively, the highest level in more than four years, industry sources said Sept. 27. The rise in TCs/RCs indicates that local markets have an elevated supply of copper concentrate, the sources said. Most…