# HS code 3104.90: Mineral or chemical fertilisers, potassic

> HS code 3104.90 covers mineral or chemical fertilisers, potassic, other than those classified in 3104.20 and 3104.30. It sits in heading 31.04 (mineral or chemical fertilisers, potassic) in chapter 31 (fertilisers). Other goods of heading 31.04 are classified under 3104.20 (potassium chloride) or 3104.30 (potassium sulphate). National tariff lines under 3104.90 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/310490
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 31](https://border.bot/hs-codes/31) / [31.04](https://border.bot/hs-codes/3104) / [3104.90](https://border.bot/hs-codes/310490)

## Key facts

- HS code: 3104.90
- Covers: Mineral or chemical fertilisers, potassic
- Heading: [31.04: Mineral or chemical fertilisers, potassic](https://border.bot/hs-codes/3104)
- Chapter: [31: Fertilisers](https://border.bot/hs-codes/31)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/310490)

## What this code covers

HS code 3104.90 covers mineral or chemical fertilisers, potassic, other than those classified in 3104.20 and 3104.30.

The legal text of the subheading is “Other”, in HS2022.

## What it doesn’t cover

Other goods of heading 31.04 are classified under 3104.20 (potassium chloride) or 3104.30 (potassium sulphate).

- [3104.20](https://border.bot/hs-codes/310420) Potassium chloride
- [3104.30](https://border.bot/hs-codes/310430) Potassium sulphate

## How it is structured

3104.90 is a six-digit subheading. Its first two digits, 31, are the chapter; the first four, 3104, are heading 31.04; the last two, 90, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 31: Fertilisers
- Heading 31.04: Mineral or chemical fertilisers, potassic
- Subheading 3104.90: Other

## In other countries

National tariff lines under 3104.90 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/310490): 1 line, used by 1 other country

- Previous subheading: [3104.30](https://border.bot/hs-codes/310430) Potassium sulphate
- Next subheading: [3105.10](https://border.bot/hs-codes/310510) Goods of this Chapter in tablets or similar forms or in packages of a gross weight not exceeding 10kg

## Frequently asked questions

### What does HS code 3104.90 cover?

HS code 3104.90 covers mineral or chemical fertilisers, potassic, other than those classified in 3104.20 and 3104.30.

### Which heading and chapter is HS code 3104.90 in?

HS code 3104.90 is in heading 31.04 (mineral or chemical fertilisers, potassic) in chapter 31 (fertilisers).

### Where are goods of heading 31.04 classified when 3104.90 doesn’t fit?

Other goods of heading 31.04 are classified under 3104.20 (potassium chloride) or 3104.30 (potassium sulphate).

### Which countries’ tariffs list national lines under HS code 3104.90?

National tariff lines under 3104.90 are live on border.bot for the United States (1 line, 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.

Machine-readable: https://border.bot/hs-codes/310490.json