BEIJING, Sept. 14 (Xinhua) -- China's value-added industrial output, an important economic indicator, expanded 4.5 percent year on year in August, official data showed Saturday.

On a monthly basis, the industrial output edged up 0.32 percent in August from the previous month, the National Bureau of Statistics said in a monthly statement.

The industrial output measures the activity of enterprises each with an annual main business turnover of at least 20 million yuan (about 2.82 million U.S. dollars).