China's Shanghai Composite Index opened down 7.16 points, or 0.19%, at 3815.12 on Wednesday, August 5th. The Shenzhen Component Index opened down 240.88 points, or 1.73%, at 13644.83 on Wednesday, August 5th. The CSI 300 Index opened down 50.74 points, or 1.1%, at 4550.19 on Wednesday, August 5th. The ChiNext Index opened down 116.88 points, or 3.35%, at 3372.08 on Wednesday, August 5th. The STAR Market 50 Index opened down 1.1 points, or 0.07%, at 1615.26 on Wednesday, August 5th.