HS heading 31.05: Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg
Last updated
Key facts
- Heading
- 31.05
- Description
- Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg
- Chapter
- 31: Fertilisers
- Subheadings
- 8
- Edition
- HS2022
Summary
HS heading 31.05 covers mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg. It is in chapter 31 (fertilisers). It is split into 8 subheadings: 3105.10 (goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg), 3105.20 (mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium), 3105.30 (diammonium hydrogenorthophosphate (diammonium phosphate)), 3105.40 (ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)), 3105.51 (other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus, containing nitrates and phosphates), 3105.59 (other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus, other) and 2 others. National tariff lines under heading 31.05 are live on border.bot for the United States (10 lines, also used by 1 other country).
What this code covers
HS heading 31.05 covers mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg.
It is split into 8 subheadings: 3105.10 (goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg), 3105.20 (mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium), 3105.30 (diammonium hydrogenorthophosphate (diammonium phosphate)), 3105.40 (ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)), 3105.51 (other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus, containing nitrates and phosphates), 3105.59 (other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus, other) and 2 others.
- 3105.10Goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg
- 3105.20Mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium
- 3105.30Diammonium hydrogenorthophosphate (diammonium phosphate)
- 3105.40Ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)
- 3105.51Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus: Containing nitrates and phosphates
- 3105.59Other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus: Other
- 3105.60Mineral or chemical fertilisers containing the two fertilising elements phosphorus and potassium
- 3105.90Other
What it doesn’t cover
Other goods of chapter 31 are classified in its other 4 headings, listed below.
- 31.01Animal or vegetable fertilisers, whether or not mixed together or chemically treated; fertilisers produced by the mixing or chemical treatment of animal or vegetable products
- 31.02Mineral or chemical fertilisers, nitrogenous
- 31.03Mineral or chemical fertilisers, phosphatic
- 31.04Mineral or chemical fertilisers, potassic
How it is structured
Heading 31.05 is one of 5 headings in chapter 31. Its first two digits, 31, are the chapter; the next two, 05, number the heading within it. Its subheadings add two more digits (3105.10, 3105.20, 3105.30).
In other countries
National tariff lines under heading 31.05 are live on border.bot for the United States (10 lines, also used by 1 other country).
- United States10 lines, used by 1 other country
Frequently asked questions
What does HS heading 31.05 cover?
HS heading 31.05 covers mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg.
Which chapter is HS heading 31.05 in?
HS heading 31.05 is in chapter 31 (fertilisers).
How many subheadings does HS heading 31.05 have?
HS heading 31.05 has 8 subheadings: 3105.10 (goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg), 3105.20 (mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium), 3105.30 (diammonium hydrogenorthophosphate (diammonium phosphate)), 3105.40 (ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)), 3105.51 (other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus, containing nitrates and phosphates), 3105.59 (other mineral or chemical fertilisers containing the two fertilising elements nitrogen and phosphorus, other) and 2 others.
Which countries’ tariffs list national lines under HS heading 31.05?
National tariff lines under heading 31.05 are live on border.bot for the United States (10 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.