SHANGHAI, Aug 1 (Reuters) - Activity in China's services industry quickened slightly in July from the previous month, an official survey showed on Saturday.

The official non-manufacturing Purchasing Managers' Index (PMI) stood at 53.9 in July, compared with the previous month's reading of 53.8 and above the 50-point mark that separates growth from contraction on a monthly basis.

(Editing by Kim Coghill)