China's Shanghai Composite Index closed up 13.08 points, or 0.32%, at 4062.98 on Wednesday, March 18. The Shenzhen Component Index closed up 148.06 points, or 1.05%, at 14187.8. The CSI 300 Index closed up 20.89 points, or 0.45%, at 4658.33. The ChiNext Index closed up 66.31 points, or 2.02%, at 3346.36. The STAR Market 50 Index closed up 18.43 points, or 1.36%, at 1372.58 on Wednesday, March 18.