China's value-added industrial output, an important economic indicator, expanded 6.7 percent year on year in the first half of 2018, the National Bureau of Statistics (NBS) said on Monday.

The growth rate was 0.2 percentage points lower than that recorded in the first five months.

Industrial output, officially called industrial value added, is used to measure the activity of certain large enterprises with an annual revenue of at least 20 million yuan (about 3.03 million U.S. dollars).

Ownership analysis showed that, industrial output of state-holding enterprises and share-holding firms were up 6.1 percent in June. Meanwhile, industrial output of enterprises funded by overseas investors increased 5.4 percent.

Manufacturing output expanded 6 percent year on year in June, while mining output growth rose 2.7 percent year on year.