China's benchmark Shanghai Composite Index on the Shanghai Stock Exchange closed at 2,059.54 points on Tuesday, down 18.96 points, or 0.91 percent, from the previous close. A Share Index: 2,156.81 points, down 19.89 points, or 0.91 percent; B Share Index: 217.49 points, down 1.14 points, or 0.52 percent; Total Turnover: 43.63 billion yuan (6.93 billion U.S. dollars).