BEIJING, Nov. 17 -- Major enterprises in China's chemical industry logged stable expansion in terms of production and revenue in the January-September period, data from the National Bureau of Statistics showed.

Industrial added value of these firms rose 3.9 percent year on year in the period, and their main business revenue went up 8.2 percent year on year to 100.17 trillion yuan (about 14.18 trillion U.S. dollars), according to the bureau.

The data shows that the total profits of these companies topped 6.24 trillion yuan, edging down 2.3 percent from a year ago.

During the same period, main business revenue of firms in the subsector of petroleum, coal and fuel processing climbed 21.8 percent year on year, while that of those in the subsector of chemical raw material and product manufacturing increased by 15.2 percent.