# HS code 3104.30: Potassium sulphate

> HS code 3104.30 covers potassium sulphate. 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 3104.90 (other). National tariff lines under 3104.30 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/310430
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) / [3104.30](https://border.bot/hs-codes/310430)

## Key facts

- HS code: 3104.30
- Covers: Potassium sulphate
- 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/310430)

## What this code covers

HS code 3104.30 covers potassium sulphate.

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

## What it doesn’t cover

Other goods of heading 31.04 are classified under 3104.20 (potassium chloride) or 3104.90 (other).

- [3104.20](https://border.bot/hs-codes/310420) Potassium chloride
- [3104.90](https://border.bot/hs-codes/310490) Other

## How it is structured

3104.30 is a six-digit subheading. Its first two digits, 31, are the chapter; the first four, 3104, are heading 31.04; the last two, 30, 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 3104.30: Potassium sulphate

## In other countries

National tariff lines under 3104.30 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/310430): 1 line, used by 1 other country

- Previous subheading: [3104.20](https://border.bot/hs-codes/310420) Potassium chloride
- Next subheading: [3104.90](https://border.bot/hs-codes/310490) Other

## Frequently asked questions

### What does HS code 3104.30 cover?

HS code 3104.30 covers potassium sulphate.

### Which heading and chapter is HS code 3104.30 in?

HS code 3104.30 is in heading 31.04 (mineral or chemical fertilisers, potassic) in chapter 31 (fertilisers).

### Where are goods of heading 31.04 classified when 3104.30 doesn’t fit?

Other goods of heading 31.04 are classified under 3104.20 (potassium chloride) or 3104.90 (other).

### Which countries’ tariffs list national lines under HS code 3104.30?

National tariff lines under 3104.30 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/310430.json