With a decline of 8.3 percent to $4.07 per pound on Friday, September 13, the price of US copper producer grade 102 recorded the biggest decline of the day. The price of US copper producer grade 110 saw a 1.0 percent decline to $3.88 per pound. The price of US copper producer grade 122 fell 1.0 percent to $3.88 per pound. Weakening prices followed two days of improvement as the Japanese copper cash price dropped 0.7 percent to JPY 743,000 ($7,462) per metric ton.
Chinese copper closed mixed last Friday. Chinese copper wire closed 0.8 percent lower at CNY 51,790 ($8,467) per metric ton. Chinese copper bar finished the day down 0.8 percent to CNY 52,650 ($8,607) per metric ton. The Chinese copper cash price declined 0.8 percent to CNY 52,850 ($8,640) per metric ton. At CNY 52,750 ($8,624) per metric ton, the price of Chinese bright copper scrap was essentially unchanged.
The primary copper cash price weakened by 1.7 percent on the LME, settling at $7,043 per metric ton. Also on the LME, the 3-month price of copper fell 1.6 percent to $7,076 per metric ton.