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HS is a logical and legal system that categorizes commodities into different codes according to the International Convention on the Harmonized Commodity Description and Coding System. The system is used as a global standard and a common language in international trade by over 190 countries throughout the world with the object of standardizing tariffs, the certificate of origin, trade statistics, and transportation. Therefore, without complete understanding of HS, we may not be able to deal with HS classification disputes effectively in the age of unlimited competition, despite it is quite complex and difficult to comprehend knowledge of resolution skill of conflict, social sciences and natural sciences that is necessary for commodity classification.