The Shangai Composite Index fell 33 points or 0.83 percent on Tuesday to close at 3934 points. Leading the losses are China Molybdenum (-7.81%), Zijin Mining (-6.38%) and Sany Heavy Industry (-3.29%). Top gainers were Kangmei Pharma (4.41%), Petrochina (1.66%) and Jiangsu Hengrui (1.27%).