The State Intellectual Property Office released an annual report on PTC system in China 2015 in late April.

The report shows that while China continues filing a large number (29,800) of PCT applications in 2015, the ones that subsequently enter into national phase are still few in number.

The high cost is the main obstacle for Chinese entities to file PCT applications. Most of the medium and small sized enterprises and some of the enterprises preparing to go overseas have limited knowledge about PCT system.

http://english.sipo.gov.cn/news/official/201604/t201604 27_1265688.html