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The Hang Seng Index rose 0.40 percent, or 122.52 points, to 31,020.23.
But the benchmark Shanghai Composite Index gave up 0.15 percent, or 4.80 points, to 3,203.28, while the Shenzhen Composite Index, which tracks stocks on China's second exchange, lost 0.13 percent, or 2.42 points, to 1,848.55.