“Shares in mainland China have recorded their biggest one-day fall for more than eight years following a sell-off towards the end of the trading day. The Shanghai Composite closed down 8.5% at 3,725.56 after more weak economic data raised concerns about the health of world’s second largest economy. Profit at China’s industrial firms dropped 0.3% in June from a year ago.”
Source: China shares fall more than 8% on growth concerns – BBC News