China's Shanghai Composite Index opened down 9.5 points, or 0.23%, at 4153.59 on Tuesday, June 23. The Shenzhen Component Index opened down 48.26 points, or 0.29%, at 16324.24. The CSI 300 Index opened down 11.63 points, or 0.23%, at 5048.03. The ChiNext Index opened down 15.52 points, or 0.36%, at 4343.88. The STAR Market 50 Index opened down 19.66 points, or 1.01%, at 1929.27.