China has completed the ratification for the Regional Comprehensive Economic Partnership (RCEP) and submitted the document to the Association of Southeast Asian Nations (ASEAN) last month.

RCEP, a free trade agreement signed among 15 Asia-Pacific nations including China, Australia, Japan and Singapore, accounts for about 30 percent of the world's population and global GDP.

Zheng Yongnian, director of the Advanced Institute of Global and Contemporary China Studies of the Chinese University of Hong Kong in Shenzhen, told CGTN that the U.S. is a challenge to RECP.