# United States tariff lines under HS 2833.29

> The United States tariff splits HS 2833.29 (other sulphates: Other) into 7 national lines: 2833.29.10.00 (of cobalt), 2833.29.20.00 (of iron), 2833.29.30.00 (of vanadium), 2833.29.40.00 (of chromium) and 3 others. The general (MFN) duty differs by line: 1.4% on 2833.29.10.00, free on 2833.29.20.00, 5.5% on 2833.29.30.00, 3.7% on 2833.29.40.00, 1.6% on 2833.29.45.00, 3.7% on 2833.29.51.10 and 3.7% on 2833.29.51.90.

Source: https://border.bot/countries/united-states/hs-codes/283329
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) / [2833.29](https://border.bot/countries/united-states/hs-codes/283329)

## Key facts

- HS subheading: [2833.29](https://border.bot/hs-codes/283329)
- National lines: 7
- 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 2833.29

The United States tariff splits HS 2833.29 (other sulphates: Other) into 7 national lines: 2833.29.10.00 (of cobalt), 2833.29.20.00 (of iron), 2833.29.30.00 (of vanadium), 2833.29.40.00 (of chromium) and 3 others.

The general (MFN) duty differs by line: 1.4% on 2833.29.10.00, free on 2833.29.20.00, 5.5% on 2833.29.30.00, 3.7% on 2833.29.40.00, 1.6% on 2833.29.45.00, 3.7% on 2833.29.51.10 and 3.7% on 2833.29.51.90.

- [2833.29.10.00](https://border.bot/countries/united-states/hs-codes/2833291000) Other sulfates, Other, Of cobalt. Duty (MFN): 1.4%
- [2833.29.20.00](https://border.bot/countries/united-states/hs-codes/2833292000) Other sulfates, Other, Of iron. Duty (MFN): free
- [2833.29.30.00](https://border.bot/countries/united-states/hs-codes/2833293000) Other sulfates, Other, Of vanadium. Duty (MFN): 5.5%
- [2833.29.40.00](https://border.bot/countries/united-states/hs-codes/2833294000) Other sulfates, Other, Of chromium. Duty (MFN): 3.7%
- [2833.29.45.00](https://border.bot/countries/united-states/hs-codes/2833294500) Other sulfates, Other, Of zinc. Duty (MFN): 1.6%
- [2833.29.51.10](https://border.bot/countries/united-states/hs-codes/2833295110) Other sulfates, Other, Other, Of manganese. Duty (MFN): 3.7%
- [2833.29.51.90](https://border.bot/countries/united-states/hs-codes/2833295190) Other sulfates, Other, Other, Other. Duty (MFN): 3.7%

## In other countries

No other national tariff on border.bot has live lines under 2833.29 yet.

- [The Harmonized System text for 2833.29](https://border.bot/hs-codes/283329)

- Previous subheading: [2833.27](https://border.bot/countries/united-states/hs-codes/283327) Sulfates; alums; peroxosulfates (persulfates)
- Next subheading: [2833.30](https://border.bot/countries/united-states/hs-codes/283330) Sulfates; alums; peroxosulfates (persulfates)

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2833.29?

The United States tariff splits HS 2833.29 (other sulphates: Other) into 7 national lines: 2833.29.10.00 (of cobalt), 2833.29.20.00 (of iron), 2833.29.30.00 (of vanadium), 2833.29.40.00 (of chromium) and 3 others.

### What is the duty on HS 2833.29 in the United States?

The general (MFN) duty differs by line: 1.4% on 2833.29.10.00, free on 2833.29.20.00, 5.5% on 2833.29.30.00, 3.7% on 2833.29.40.00, 1.6% on 2833.29.45.00, 3.7% on 2833.29.51.10 and 3.7% on 2833.29.51.90.

## 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/283329.json