Read more about China Stocks gain on Sino-U.S. trade talks on Business Standard. At closing bell, the benchmark Shanghai Composite Index advanced 0.54%, or 19.46 points, to 3,610.86. The Shenzhen Composite Index, which tracks stocks on China's second exchange, added 1.09%, or 26.04 points, to 2,422.58. The blue-chip CSI300