(Yicai Global) Sept. 3 -- China's three benchmark mainland stock market indexes further expanded their gains at the close. Smart home and augmented reality shares led the gains, averaging 4.27 and 4.13 percent increases.

The Shanghai composite index closed 0.21 percent up at 2,930.15 on a CNY225 billion (USD31.3 billion) trading volume. The Shenzhen Component Index climbed 0.67 percent to close at 9,633.69 on turnover of CNY339.3 billion. The ChiNext index went up 0.49 percent to 1,660.43, with CNY117.5 billion changing hands.

Shares on Shanghai's sci-tech SSE Star Market jumped over 8.3 percent to far surpass the eastern city's main board.

Editor: Ben Armour