(Yicai Global) Jan. 10 --  China's mainland stock markets opened higher while maintaining their  upward trends after Shenzhen's two equity benchmarks hit 21-month highs  yesterday. 

The Shanghai Composite  Index started 0.24 percent up at 3,102.29. The Shenzhen Component Index  began 0.27 percent stronger at 10,927.98. The ChiNext Price Index, which  tracks growth enterprises listed in Shenzhen, climbed 0.23 percent to  1,917.61.

Editor: Emmi Laine