• The Hang Seng Index jumped 1.85 percent, or 428.37 points, to 23,603.48.
• The benchmark Shanghai Composite Index edged up 0.11 percent, or 3.08 points, to 2,750.30.

The Hang Seng Index jumped 1.85 percent, or 428.37 points, to 23,603.48.

The benchmark Shanghai Composite Index edged up 0.11 percent, or 3.08 points, to 2,750.30, but the Shenzhen Composite Index on China's second exchange added 0.51 percent, or 8.38 points, to 1,665.93.