China's industrial output expanded 6.1 percent year on year in August, slightly higher than the 6-percent rise in the previous month, official data showed Friday.

In the first eight months, industrial output rose 6.5 percent, 0.1 percentage points slower than the Jan.-July period, the National Bureau of Statistics said in a statement.

Industrial output, officially called industrial value added, is used to measure the activity of designated large enterprises with annual turnover of at least 20 million yuan (about US$2.9 million).