China's benchmark Shanghai Composite Index on the Shanghai Stock Exchange closed at 2,044.34 points on Wednesday, down 2.98 points, or 0.15 percent. A Share Index: 2,139.51 points, down 3.15 points, or 0.15 percent; B Share Index: 245.12 points, up 0.51 point, or 0.21 percent; Total Turnover: 62.94 billion yuan (10.3 billion U.S. dollars).