BRIEF-Shanghai Chengtou's Q1 net profit down 34.0 pct

April 29 (Reuters) - Shanghai Chengtou Holding Co Ltd * Says Q1 net profit down 34.0 percent y/y at 710.9 million yuan ($109.66 million) Source text in Chinese: http://bit.ly/1QEYVEr Further company coverage: ($1 = 6.4830 Chinese yuan renminbi) (Reporting by Hong Kong newsroom)