Harmonized System of Korea(HSK)
Korea Customs classifies imported goods on the basis of the Harmonized Commodity Description and Coding System since July 1, 1988. (Before this, CCCN was used.)

International Convention on the Harmonized Commodity and Coding System comprises Main Body and Annex (6-digit nomenclature, General Rules of the Interpretation of the Harmonized system, legal notes for the Sections and Chapters.)
 

 Korea reflects General Rules of the Interpretation of the Harmonized system, legal notes for the Sections and Chapters in an annex to its Customs Act. Six (6) -digit nomenclatures is reflected in Rules for the Interpretation of the Tariff Schedule for [the Korea's Tariff Schedule] which is an integral part of Korea Customs Act by inserting a phrase "The customs classification which is not provided in this Tariff Schedule shall be determined according to the International Convention on the harmonized Commodity Description and Coding System."

 When 10 digit commodity classification code for a material is applied through HSK system
(for example, HSK code for raw garlic is 0710.80.2000) tariff rate is set according to the
number. (for raw garlic, basic tariff 30% ,conventional tariff 28.7% currently in 2002, plus
emergency tariff is now in effect)So correct classification is vital for importers to coax
exact calculation on import cost.