HS heading 31.03: Mineral or chemical fertilisers, phosphatic
Last updated
Key facts
- Heading
- 31.03
- Description
- Mineral or chemical fertilisers, phosphatic
- Chapter
- 31: Fertilisers
- Subheadings
- 3
- Edition
- HS2022
Summary
HS heading 31.03 covers mineral or chemical fertilisers, phosphatic. It is in chapter 31 (fertilisers). It is split into 3 subheadings: 3103.11 (superphosphates, containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)), 3103.19 (superphosphates, other) and 3103.90 (other). National tariff lines under heading 31.03 are live on border.bot for the United States (3 lines, also used by 1 other country).
What this code covers
HS heading 31.03 covers mineral or chemical fertilisers, phosphatic.
It is split into 3 subheadings: 3103.11 (superphosphates, containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)), 3103.19 (superphosphates, other) and 3103.90 (other).
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
- 31.04Mineral or chemical fertilisers, potassic
- 31.05Mineral 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
How it is structured
Heading 31.03 is one of 5 headings in chapter 31. Its first two digits, 31, are the chapter; the next two, 03, number the heading within it. Its subheadings add two more digits (3103.11, 3103.19, 3103.90).
In other countries
National tariff lines under heading 31.03 are live on border.bot for the United States (3 lines, also used by 1 other country).
- United States3 lines, used by 1 other country
Frequently asked questions
What does HS heading 31.03 cover?
HS heading 31.03 covers mineral or chemical fertilisers, phosphatic.
Which chapter is HS heading 31.03 in?
HS heading 31.03 is in chapter 31 (fertilisers).
How many subheadings does HS heading 31.03 have?
HS heading 31.03 has 3 subheadings: 3103.11 (superphosphates, containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)), 3103.19 (superphosphates, other) and 3103.90 (other).
Which countries’ tariffs list national lines under HS heading 31.03?
National tariff lines under heading 31.03 are live on border.bot for the United States (3 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.