HS uses a six-digit code to divide all internationally traded goods into 22 categories and 98 chapters. p>HS uses a six-digit code to categorize all internationally traded goods into 22 categories and 98 chapters. The following chapters are further divided into items and subheadings. Commodity code the first and second digits on behalf of the "chapter", the third and fourth digits on behalf of the "item" (Heading), the fifth and sixth digits on behalf of the "subheading" (Subheading). Subheading). The first six digits are the HS international standard code, and there are 1,241 four-digit tariff lines and 5,113 six-digit subheadings in HS. Some countries have divided the seventh, eighth and ninth digits according to their own reality.
In HS, "class" is basically divided by economic sectors, such as food, beverages and alcohol in the fourth category, the chemical industry and its related industrial products in the sixth, textile raw materials and products in the eleventh category, mechanical and electrical equipment in the sixteenth category. Transportation equipment in the seventeenth category, weapons, ammunition in the nineteenth category, etc. HS "Chapter" classification basically takes two approaches: First, according to the attributes of commodity raw materials classification, the same raw material products are generally categorized in the same chapter. Chapter according to the degree of processing of products from raw materials to finished products in order. Such as 52 chapters of cotton, raw cotton - carded cotton - cotton yarn - cotton cloth in order. Second, according to the use of goods or performance classification. Many products in the manufacturing industry is difficult to classify according to its raw materials, especially products made of a variety of materials or products made of mixed materials (such as Chapter 64 shoes, Chapter 65 hats, Chapter 95 toys, etc.) and electromechanical instrumentation products, etc., the HS according to its function or use is divided into different chapters, without regard to its use of what raw materials, and then arranged according to the raw materials within the chapter or the processing procedures of the item or subheading. Each chapter of the HS has a "bottom" role, named "other" subheading, so that any import and export commodities can find their proper place in this classification system.
China's current use of HS code, a *** 10-bit, of which the first eight called the main code, the last two are called additional code.