On Sept. 21, 2012, the 3-month price of copper fell by 1.6 percent on the LME, landing at $8,200 per metric ton and making it the biggest mover on MetalMiner’s daily copper price index. The primary copper cash price weakened by 1.3 percent on the LME, settling at $8,215 per metric ton.
The prices of US copper producer grades 110 and 122 finished the day with a 0.5 percent increase. The price of US copper producer grade 102 finished the market day up 0.4 percent.
The cash price of primary Japanese copper was unchanged.
Chinese copper closed mixed last Friday. Chinese copper bar closed 0.1 percent lower, as did the Chinese copper cash price, also falling 0.1 percent.
Chinese copper wire held its value last Friday, and the price of Chinese bright copper scrap showed little movement as well.