(Yicai  Global) May 10 -- Stock markets on the Chinese mainland retreated after  a strong opening with investors on alert for any possible outcome from  the China-US trade talks.

The Shanghai  Composite Index was up 1.5 percent at 2,893.82 going into the lunch  break, after moving as much as 2.6 percent higher earlier. The Shenzhen  Component Index was up 1.87 percent at 9,043.19, after increasing more  than 3 percent earlier. The ChiNext Price Index, which tracks growth  enterprises listed in Shenzhen, was 1.95 percent higher at 1,498.07  after gained as much as 3.6 percent earlier.