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The benchmark Hang Seng Index gained 172.68 points to close at 22,857.90 on turnover of HK$73.95 billion ($9.50 billion).
Chinese shares closed up 0.34 percent, with banks and metal firms leading the gains, dealers said.
The Shanghai Composite Index, which covers both A and B shares, was up 10.0 points to 2,919.14 on turnover of 120.2 billion yuan ($18.2 billion).