Hong Kong stocks close up 0.52 % GMT 14:40 2012 Wednesday, 29 February Last Updated: 09:03:51 GMT Hong Kong - Xinhua Hong Kong stocks closed up 111.35 points, or 0.52 percent, at 21,680.08 on Wednesday. Turnover totaled 70.88 billion HK dollars compared with Tuesday\'s 62.41 billion HK dollars (1 U.S. dollar equals to 7.76 HK dollar).