The Hang Seng Index was up 0.18 percent, or 51.45 points, to 28,575.49.

The benchmark Shanghai Composite Index opened 0.09 points lower at 2,923.19. The Shenzhen Composite Index, which tracks stocks on China's second exchange, edged down 0.01 percent, or 0.14 points, to open at 1,562.83.