At close of trade, the benchmark Shanghai Composite Index fell 0.13%, or 3.98 points, to 3,080.96. The Shenzhen Composite Index, which tracks stocks on China's second exchange, added 0.36%, or 7.27 points, to 2,005.08. The blue-chip CSI300 index decreased 0.21%, or 8.14 points, to 3,838.27.