The most-traded February copper contract on the Shanghai Futures Exchange slipped 0.3 percent to 50,250 yuan ($8,200) a tonne on Monday. "At the end of the day, we knew that the reforms would be positive, but I tend to think the markets wanted more concrete ideas. They didn't get them, therefore markets sold off," said Jonathan Barratt, chief executive of commodity research firm Barratt's Bulletin in Sydney. "If copper holds here and manages to bounce back to the topside then it's a very bullish chart signal."