Jun. 4, 2009 (China Knowledge) - Hong Kong stocks shrank 453 points or 2.44% to end the morning session at 18,123 points, with mainboard turnover standing at HK$48.59 billion.The Hang Seng China Enterprise Index, which tracks the overall performance of 43 Chinese mainland state-owned enterprises on the Hong Kong Stock Exchange, slid 330 points to 10,495 points.Market heavyweight HSBC Holdings Plc&
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