The cash price of primary copper saw a 0.4 percent increase on Sept. 13, 2012, reaching $8,115 per metric ton on the LME and making it the biggest mover on the copper price index for the day. Also on the LME, the copper 3-month price rose 0.3 percent to $8,100 per metric ton.

The prices of US copper producer grades 102, 110 and 122 saw little movement yesterday. For the fifth day in a row, the Japanese copper cash price remained essentially flat at above $8,200 per metric ton.

Chinese copper prices were mixed for the day. The price of Chinese bright copper scrap moved up 0.3 percent. Chinese copper wire finished the day with a 0.2 percent rise.

The price of Chinese copper bar remained essentially flat, and the cash price of Chinese copper showed little movement yesterday at holding below $9,500 per metric ton.