China's National Bureau of Statistics released a series of economic data on Tuesday, which showed that the country's August investment has been growing steadily, while industrial output beated expectations.

Official data showed that China's fixed-asset investment growth was unchanged at 8.1 percent in the January to August period, slightly better than market's expectation of 8 percent. Private sector fixed-asset investment rose 2.1 percent in the period, and state fixed-asset investment rose 21.4 percent.

Industrial output in August rose 6.3 percent from a year earlier, surpassing analysts' estimates for a rise of 6.1 percent after increasing 6 percent in July. It was the fastest pace since March.

Investment in the real estate sector increased 5.4 percent year on year in the first eight months, faster than the growth of 5.3 percent in the January to July period. Investment in residential building development rose 4.8 percent year on year, while sales of commercial residential building rose 40.1 percent in the period.

Retail sales in August gained 10.6 percent year on-year, also beating expectations, and was faster than the 10.2 percent growth in July. In the period from January to August, retail sales increased 10.3 percent compared to the same period last year.