The most-traded November copper contract on the Shanghai Futures Exchange closed down 1.6 percent at 53,630 yuan ($8,400) a tonne on Wednesday. Investors continued to give the euro and risk currencies a wide berth on Wednesday following a selloff in global stocks as worries on Europe festered, though the euro was off its intraday lows.
"People are still shifting their thinking to accept less than double digit growth from China. We do know that Chinese demand has slowed, but it's certainly not a negative outlook for copper," said Matt Fusarelli, analyst at Australia-based consultancy AME Group.