With a decline of 0.7 percent on July 25, 2012, US copper producer grade 110 price recorded the biggest shift of the day.
The prices of US copper producer grades 102 and 122 saw a 0.7 percent decline as well.
The Japanese copper cash price was unchanged, holding below $8,200 per metric ton.
Chinese copper closed mixed yesterday. Chinese copper bar finished the day down 0.3 percent. The cash price of Chinese copper weakened by 0.3 percent also, while the price of Chinese copper wire declined 0.2 percent. The price of Chinese bright copper scrap flattened below $7,500 following two days of declines.
The copper 3-month price rose 0.2 percent on the LME to $7,403 per metric ton after a two-day drop. After falling for two days, the cash price of primary copper rose 0.1 percent on the LME to $7,395 per metric ton.