# HS heading 31.03: Mineral or chemical fertilisers, phosphatic

> 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).

Source: https://staging.border.bot/hs-codes/3103
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 31](https://staging.border.bot/hs-codes/31) / [31.03](https://staging.border.bot/hs-codes/3103)

## Key facts

- Heading: 31.03
- Description: Mineral or chemical fertilisers, phosphatic
- Chapter: 31: Fertilisers
- Subheadings: 3
- Edition: HS2022

## 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).

- [3103.11](https://staging.border.bot/hs-codes/310311) Superphosphates: Containing by weight 35 % or more of diphosphorus pentaoxide (P2O5)
- [3103.19](https://staging.border.bot/hs-codes/310319) Superphosphates: Other
- [3103.90](https://staging.border.bot/hs-codes/310390) Other

## What it doesn’t cover

Other goods of chapter 31 are classified in its other 4 headings, listed below.

- [31.01](https://staging.border.bot/hs-codes/3101) Animal or vegetable fertilisers, whether or not mixed together or chemically treated; fertilisers produced by the mixing or chemical treatment of animal or vegetable products
- [31.02](https://staging.border.bot/hs-codes/3102) Mineral or chemical fertilisers, nitrogenous
- [31.04](https://staging.border.bot/hs-codes/3104) Mineral or chemical fertilisers, potassic
- [31.05](https://staging.border.bot/hs-codes/3105) 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

## 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

No national tariff lines under heading 31.03 are live on border.bot yet. Tariffs built on the Harmonized System use its subheadings at six digits and add their own digits after them.

- Previous heading: [31.02](https://staging.border.bot/hs-codes/3102) Mineral or chemical fertilisers, nitrogenous
- Next heading: [31.04](https://staging.border.bot/hs-codes/3104) Mineral or chemical fertilisers, potassic

## 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).

## Sources and updates

The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.

This page was last updated on 13 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.

Machine-readable: https://staging.border.bot/hs-codes/3103.json