China's Shanghai Composite Index opened down 20.26 points, or 0.52%, at 3,896.07 on Wednesday, October 22.
China's Shenzhen Component Index opened down 91.35 points, or 0.7%, at 12,985.96 on Wednesday, October 22.
China's CSI 300 Index opened down 31.84 points, or 0.69%, at 4,576.03 on Wednesday, October 22.
China's ChiNext Index opened down 22.45 points, or 0.73%, at 3,061.27 on Wednesday, October 22.
China's STAR Market 50 Index opened down 13.73 points, or 0.98%, at 1,392.59 on Wednesday, October 22.