The Shanghai Composite Index fell 4 points or 0.09 percent on Tuesday to close at 4093 points. Leading the losses are Aluminum Corporation of China (-6.00%), China Molybdenum (-4.30%) and Hengli Petrochemical (-4.21%). Top gainers were Sanan Optoelectron (9.99%), Avic Aviation Engine (3.54%) and Inner Mongolia BaoTou Steel (2.49%).