China's Shanghai Composite Index opened 2.43 points higher, or 0.06%, at 4031.34 on Friday, July 3. The Shenzhen Component Index opened 18.69 points lower, or 0.12%, at 15480.12. The CSI 300 Index opened 2.8 points lower, or 0.06%, at 4809.5. The ChiNext Index opened 6.45 points lower, or 0.16%, at 4010.82. The STAR Market 50 Index opened 8.54 points lower, or 0.43%, at 1978.75.