The cash price of primary copper saw a 2.5 percent increase on Sept. 11, 2012, reaching $8,050 per metric ton on the LME and making it the biggest mover for the day on MetalMiner’s copper price index. Also on the LME, the copper 3-month price increased 2.4 percent to $8,032 per metric ton.
The prices of US copper producer grades 102, 110 and 122 inched up 0.9 percent. For the fifth day in a row, the cash price of primary Japanese copper remained essentially flat below $8,200 per metric ton.
Chinese copper prices were mixed for the day.
The price of Chinese copper wire changed direction with a 0.3 percent drop. Following two days of rising prices, the price of Chinese copper bar dropped 0.2 percent.
The Chinese copper cash price closed at in the mid-$9,300 per metric ton range; following a couple days of improvement, prices fell by 0.2 percent. The price of Chinese bright copper scrap, however, remained steady.