# United States tariff lines under HS 2835.29

> The United States tariff splits HS 2835.29 (phosphates: Other) into 4 national lines: 2835.29.10.00 (of aluminum), 2835.29.20.00 (of triammonium), 2835.29.30.00 (of trisodium) and 2835.29.51.00 (other). The general (MFN) duty differs by line: free on 2835.29.10.00, 1.5% on 2835.29.20.00, 2.2% on 2835.29.30.00 and 4.1% on 2835.29.51.00.

Source: https://border.bot/countries/united-states/hs-codes/283529
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) / [2835.29](https://border.bot/countries/united-states/hs-codes/283529)

## Key facts

- HS subheading: [2835.29](https://border.bot/hs-codes/283529)
- 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 2835.29

The United States tariff splits HS 2835.29 (phosphates: Other) into 4 national lines: 2835.29.10.00 (of aluminum), 2835.29.20.00 (of triammonium), 2835.29.30.00 (of trisodium) and 2835.29.51.00 (other).

The general (MFN) duty differs by line: free on 2835.29.10.00, 1.5% on 2835.29.20.00, 2.2% on 2835.29.30.00 and 4.1% on 2835.29.51.00.

- [2835.29.10.00](https://border.bot/countries/united-states/hs-codes/2835291000) Phosphates, Other, Of aluminum. Duty (MFN): free
- [2835.29.20.00](https://border.bot/countries/united-states/hs-codes/2835292000) Phosphates, Other, Of triammonium. Duty (MFN): 1.5%
- [2835.29.30.00](https://border.bot/countries/united-states/hs-codes/2835293000) Phosphates, Other, Of trisodium. Duty (MFN): 2.2%
- [2835.29.51.00](https://border.bot/countries/united-states/hs-codes/2835295100) Phosphates, Other, Other. Duty (MFN): 4.1%

## In other countries

No other national tariff on border.bot has live lines under 2835.29 yet.

- [The Harmonized System text for 2835.29](https://border.bot/hs-codes/283529)

- Previous subheading: [2835.26](https://border.bot/countries/united-states/hs-codes/283526) Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined
- Next subheading: [2835.31](https://border.bot/countries/united-states/hs-codes/283531) Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2835.29?

The United States tariff splits HS 2835.29 (phosphates: Other) into 4 national lines: 2835.29.10.00 (of aluminum), 2835.29.20.00 (of triammonium), 2835.29.30.00 (of trisodium) and 2835.29.51.00 (other).

### What is the duty on HS 2835.29 in the United States?

The general (MFN) duty differs by line: free on 2835.29.10.00, 1.5% on 2835.29.20.00, 2.2% on 2835.29.30.00 and 4.1% on 2835.29.51.00.

## 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/283529.json