China's Shanghai Composite Index opened down 3.9 points, or 0.1%, at 3869.41 on Friday, December 12. The Shenzhen Component Index opened up 27.06 points, or 0.21%, at 13174.45. The CSI 300 Index opened up 6.55 points, or 0.14%, at 4558.74. The ChiNext Index opened up 9.06 points, or 0.29%, at 3172.73. The STAR Market 50 Index opened down 1.53 points, or 0.12%, at 1324.3.