(Yicai Global) Aug. 1 -- China's mainland stock markets hit the lunch break mixed after opening lower today, as the main boards in Shanghai and Shenzhen extended morning losses while tech-focused boards clawed back to make gains.

The Shanghai Composite Index closed for lunch 0.8 percent lower at 2,909.63. The Shenzhen Component Index was at 9,269.06, down 0.62 percent, and the ChiNext Price Index, which tracks growth enterprises in Shenzhen, ended up 0.12 percent at 1,572.34.

Some 20 of the 25 companies listed on the Shanghai Star Market, a new board currently tracking 25 tech startups, made morning gains. Beijing Worldia Diamond Tools [SHA:688028] led, surging 9.14 percent to CNY114.6 (USD16.6).  

Editor: James Boynton