At close of trade, the benchmark Shanghai Composite Index was up 1.2%, or 38.62 points, to 3,268.70. The Shenzhen Composite Index, which tracks stocks on China's second exchange, added 0.44%, or 9.25 points, to 2,096.42. The blue-chip CSI300 index advanced 1.05%, or 41.55 points, to 4,008.69.