1. Enquiry of Tax Item and Tax Number:
http://www.customs.gov.cn/customs/302427/302442/jckszcx/index.html
2. Enquiry of Import and Export Tariff Commodity and Item Annotation:
http://www.customs.gov.cn/customs/302427/302442/jckszspjpmzscx/index.html
3. Enquiry of National Subheading Annotation:
http://www.customs.gov.cn/customs/302427/302442/bgzmzscx/index.html
