Fertilizers; mineral or chemical, potassic
3104
In plain English
This category includes fertilizers that are either mineral or chemical in nature and contain potassic elements. The specific types are divided based on their chemical composition, covering potassium chloride and potassium sulphate separately. Any other potassic fertilizers that do not fall into those two specific chemical categories are grouped together as the remaining items in this classification.
6-digit subheadings (3)
Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.
Chapter 31 classification notes
Frequent misclassification in this chapter
Pesticides go to Chapter 38 not 31; soil amendments without fertiliser content go to Chapter 25.
Classification certainty
The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.
Binding tariff ruling database