By
The Hang Seng Index closed up 1.86 percent at 18,416.45. The China Enterprises Index of top mainland listings in Hong Kong finished up 2.16 percent at 9,950.71. The Shanghai Composite Index reversed early gains to close down 1.12 percent at 2,191.15, breaking below the 2,200 support level that it had finished above for the three previous sessions, pointing to further weakness ahead.