China's Shanghai Composite Index opened down 6.76 points, or 0.17%, at 4068.34 on Wednesday, June 3. The Shenzhen Component Index opened up 55.56 points, or 0.36%, at 15646.68. The CSI 300 Index opened up 6.79 points, or 0.14%, at 4921.34. The ChiNext Index opened up 33.15 points, or 0.82%, at 4089.02. The STAR Market 50 Index opened up 7.1 points, or 0.42%, at 1697.66.