The benchmark Hang Seng Index gained 430.53 points to end at 18,141.59 on turnover of HK$83.60 billion ($10.74 billion). Chinese shares edged up 0.16 percent. The Shanghai Composite Index, which covers both A and B shares, added 3.73 points to 2,348.52 points on turnover of 62.8 billion yuan ($9.9 billion).