Chilean miner Codelco has increased the US benchmark copper premium for 2021 supply of cathode to traders, though the premium for most end users is flat, a source with direct knowledge of the matter confirmed on Wednesday December 9.
"For the [copper supply to the United States], it was not a rollover in general," the source told Fastmarkets. "[Codelco has] increased premiums for most traders; [the premium for] end users remained flat."A magnet wire maker said his copper rod...