Harmonized System Code Classification

31
Classification: Mineral fuels, mineral oils and products thereof
Description: This chapter includes the following main contents:
Coal, charcoal and products of wood fuel: including various types of coal, charcoal, coal tar, etc.
Petroleum and products thereof: including crude oil, gasoline, diesel, kerosene, lubricating oil, wax, etc.
* Fuel gases: including natural gas, liquefied petroleum gas, etc.

Reason for classification:
The classification principle of HS codes is based on the nature, use and manufacturing method of the goods. Goods in the "31" chapter are all derived from mineral resources and are mainly used as fuel or as basic raw materials for producing other products, hence they are classified into this chapter.

In short, if the main component of the goods is mineral fuel, or it is derived from mineral resources and used for fuel purposes, then its HS code is likely to start with "31".

3105
Classification: Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg
Meaning: This code covers mineral or chemical fertilizers containing nitrogen, phosphorus, and potassium, as well as other types of fertilizers. It also includes fertilizers packaged in tablet, granular or similar forms, or in packages with a gross weight not exceeding 10 kg.

3105.90
Classification: Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg:
* Other
* Other

3105900050
Classification: Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg: --> Other --> Other
Description: Mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus and potassium; other fertilizers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg: --> Other --> Other.

Examples of products:
Chemical fertilizer tablets containing nitrogen and phosphorus
Organic-inorganic compound fertilizer in small packages (under 10 kg)
Mixed fertilizer with potassium and nitrogen
Granular fertilizer with phosphorus and potassium
* Compound fertilizer containing nitrogen, phosphorus, and potassium