HONG KONG, Sept 20 (Reuters) - Shares in Hong Kong closed little changed on Monday with investors trimming positions ahead of regional holidays and as a weak mainland market weighed.
Hong Kong's benchmark Hang Seng Index <.HSI> closed a tad higher at 21,977.34. The China Enterprise Index <.HSCE> of top locally listed mainland shares fell 0.05 percent to 12,164.65. (Editing by Chris Lewis) (vikram.subhedar@thomsonreuters.com; +852 2843 6975; Reuters Messaging: vikram.subhedar.reuters.com@reuters.net))