http://www.customs.gov.cn/

http://policy.mofcom.gov.cn/

http://www.smert.gov.cn/

http://www.mofcom.gov.cn/static/column/b/c.html/1

http://www.mofcom.gov.cn/tongjiziliao/tongjiziliao.html

http://economicdata.mofcom.gov.cn/