Industrial production rose 4.8% in July, the lowest growth rate in 17 years. Analysts surveyed by Reuters expected an increase of 5.8%.
Retail sales increased by 7.6% in July, compared with an estimated increase of 8.6%.
The Chinese yuan also accumulated in the onshore market, after China's central bank ruled the currency higher for the first time in more than a week.
The yuan gained 0.3% from Tuesday's levels, trading at about $ 7.04 per US dollar in China,
But in the offshore market, where the yuan is moving more freely, it traded weaker than it did on Tuesday – to about 7.03 yuan per dollar.  Here are some other big moves at 10:30 am Hong Kong time:
- Stocks for airport operators in southern China increased after Hong Kong's mass protests hit the city's airport and canceled flights for a second day Tuesday. Airports near Hong Kong are expected to benefit from the disruption in the city, CITIC Securities analysts wrote in a research report. Shenzhen Airport jumped 2.4%, after a 10% gain Tuesday.
- Cathay Pacific Group ( recovered more than 3.6% in early trade in Hong Kong. The airline's stock has been severely affected by the mass protests. )
- Shares in Asia took a positive lead from Wall Street. The US markets rose sharply on Tuesday. Dow ( increased by about 373 points, or 1.4%. ) S&P 500 ( and ) Nasdaq ( received 1.5% and 2% respectively.