# United States tariff lines under HS 2833.40

> The United States tariff splits HS 2833.40 (peroxosulphates (persulphates)) into 4 national lines: 2833.40.20.00 (of sodium), 2833.40.60.10 (of potassium), 2833.40.60.20 (of ammonium) and 2833.40.60.50 (other). The general (MFN) duty differs by line: 3.7% on 2833.40.20.00, 3.1% on 2833.40.60.10, 3.1% on 2833.40.60.20 and 3.1% on 2833.40.60.50.

Source: https://border.bot/countries/united-states/hs-codes/283340
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 28](https://border.bot/countries/united-states/hs-codes/28) / [2833.40](https://border.bot/countries/united-states/hs-codes/283340)

## Key facts

- HS subheading: [2833.40](https://border.bot/hs-codes/283340)
- National lines: 4
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

## United States lines under 2833.40

The United States tariff splits HS 2833.40 (peroxosulphates (persulphates)) into 4 national lines: 2833.40.20.00 (of sodium), 2833.40.60.10 (of potassium), 2833.40.60.20 (of ammonium) and 2833.40.60.50 (other).

The general (MFN) duty differs by line: 3.7% on 2833.40.20.00, 3.1% on 2833.40.60.10, 3.1% on 2833.40.60.20 and 3.1% on 2833.40.60.50.

- [2833.40.20.00](https://border.bot/countries/united-states/hs-codes/2833402000) Peroxosulfates (persulfates), Of sodium. Duty (MFN): 3.7%
- [2833.40.60.10](https://border.bot/countries/united-states/hs-codes/2833406010) Peroxosulfates (persulfates), Other, Of potassium. Duty (MFN): 3.1%
- [2833.40.60.20](https://border.bot/countries/united-states/hs-codes/2833406020) Peroxosulfates (persulfates), Other, Of ammonium. Duty (MFN): 3.1%
- [2833.40.60.50](https://border.bot/countries/united-states/hs-codes/2833406050) Peroxosulfates (persulfates), Other, Other. Duty (MFN): 3.1%

## In other countries

No other national tariff on border.bot has live lines under 2833.40 yet.

- [The Harmonized System text for 2833.40](https://border.bot/hs-codes/283340)

- Previous subheading: [2833.30](https://border.bot/countries/united-states/hs-codes/283330) Sulfates; alums; peroxosulfates (persulfates)
- Next subheading: [2834.10](https://border.bot/countries/united-states/hs-codes/283410) Nitrites

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2833.40?

The United States tariff splits HS 2833.40 (peroxosulphates (persulphates)) into 4 national lines: 2833.40.20.00 (of sodium), 2833.40.60.10 (of potassium), 2833.40.60.20 (of ammonium) and 2833.40.60.50 (other).

### What is the duty on HS 2833.40 in the United States?

The general (MFN) duty differs by line: 3.7% on 2833.40.20.00, 3.1% on 2833.40.60.10, 3.1% on 2833.40.60.20 and 3.1% on 2833.40.60.50.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/283340.json