---Circular of the Ministry of Foreign Trade and Economic Cooperation,lifting the administrative restriction on the qualification to export greige products
2、对外贸易经济合作部关于对印度出口焦炭有关问题的通知
---Circular of the Ministry of Foreign Trade and Economic Cooperation,on the issues concerning exporting the coke to India
3、中华人民共和国海关总署令第87号
---Decree No.87 of the General Administration of Customs,the People's Republic of China
4、中华人民共和国海关总署令第88号
---Decree No.88 of the General Administration of Customs,the People's Republic of China
5、中华人民共和国海关总署公告2001年8号
---Announcement No.8 of the General Administration of Customs,the People's Republic of China