Shanghai copper down

The most-traded December copper contract on the Shanghai Futures Exchange lost 0.3 percent to 47,900 yuan ($7,809) a tonne on Wednesday ahead of a seasonally stronger quarter for demand, although worries about global growth clouded the outlook for metals and kept a lid on gains.
The International Monetary Fund cut its global economic growth forecasts for the third time this year on Tuesday, warning of weaker growth in core euro zone countries, Japan and big emerging markets like Brazil. "Things are looking more uncertain than a month or two ago," said analyst Lachlan Shaw of Commonwealth Bank of Australia. "Broader macro themes may be reasserting themselves, around the Fed policy and the risk of global deflation ... we see weaker growth and more deflationary pressure and in the absence of policy response, that's bearish for the metals complex."