China's Shanghai Composite Index opened 4.05 points higher, or 0.1%, at 3884.15 on Tuesday, April 7th. The Shenzhen Component Index opened 40.04 points higher, or 0.3%, at 13392.94. The CSI 300 Index opened 5.07 points higher, or 0.11%, at 4445.86. The ChiNext Index opened 13.23 points higher, or 0.42%, at 3162.82. The STAR Market 50 Index opened 5.5 points higher, or 0.44%, at 1261.71.