# 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).

Source: https://staging.border.bot/hs-codes/310490
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 31](https://staging.border.bot/hs-codes/31) / [31.04](https://staging.border.bot/hs-codes/3104) / [3104.90](https://staging.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://staging.border.bot/hs-codes/3104)
- Chapter: [31: Fertilisers](https://staging.border.bot/hs-codes/31)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## 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://staging.border.bot/hs-codes/310420) Potassium chloride
- [3104.30](https://staging.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

No national tariff lines under 3104.90 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3104.90 at six digits and add their own digits after it.

- Previous subheading: [3104.30](https://staging.border.bot/hs-codes/310430) Potassium sulphate
- Next subheading: [3105.10](https://staging.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).

## 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/310490.json