HONG KONG, Dec. 9 (Xinhua) -- The Hang Seng Index gained 15.61 points, or 0.06 percent, to open at 25,780.97 points on Tuesday. Enditem

HONG KONG, Dec. 9 (Xinhua) -- The Hang Seng Index gained 15.61 points, or 0.06 percent, to open at 25,780.97 points on Tuesday. Enditem