# HS code 2811.29: Other inorganic oxygen compounds of non-metals

> HS code 2811.29 covers other inorganic oxygen compounds of non-metals, other than those classified in 2811.21 and 2811.22. It sits in heading 28.11 (other inorganic acids and other inorganic oxygen compounds of non-metals) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.11 are classified under 2811.11 (other inorganic acids, hydrogen fluoride (hydrofluoric acid)), 2811.12 (other inorganic acids, hydrogen cyanide (hydrocyanic acid)), 2811.19 (other inorganic acids, other), 2811.21 (other inorganic oxygen compounds of non-metals, carbon dioxide) or 1 other.

Source: https://staging.border.bot/hs-codes/281129
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 28](https://staging.border.bot/hs-codes/28) / [28.11](https://staging.border.bot/hs-codes/2811) / [2811.29](https://staging.border.bot/hs-codes/281129)

## Key facts

- HS code: 2811.29
- Covers: Other inorganic oxygen compounds of non-metals
- Heading: [28.11: Other inorganic acids and other inorganic oxygen compounds of non-metals](https://staging.border.bot/hs-codes/2811)
- Chapter: [28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes](https://staging.border.bot/hs-codes/28)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 2811.29 covers other inorganic oxygen compounds of non-metals, other than those classified in 2811.21 and 2811.22.

The legal text of the subheading is “Other inorganic oxygen compounds of non-metals: Other”, read under “Other inorganic oxygen compounds of non-metals”, in HS2022.

## What it doesn’t cover

Other goods of heading 28.11 are classified under 2811.11 (other inorganic acids, hydrogen fluoride (hydrofluoric acid)), 2811.12 (other inorganic acids, hydrogen cyanide (hydrocyanic acid)), 2811.19 (other inorganic acids, other), 2811.21 (other inorganic oxygen compounds of non-metals, carbon dioxide) or 1 other.

- [2811.11](https://staging.border.bot/hs-codes/281111) Other inorganic acids: Hydrogen fluoride (hydrofluoric acid)
- [2811.12](https://staging.border.bot/hs-codes/281112) Other inorganic acids: Hydrogen cyanide (hydrocyanic acid)
- [2811.19](https://staging.border.bot/hs-codes/281119) Other inorganic acids: Other
- [2811.21](https://staging.border.bot/hs-codes/281121) Other inorganic oxygen compounds of non-metals: Carbon dioxide
- [2811.22](https://staging.border.bot/hs-codes/281122) Other inorganic oxygen compounds of non-metals: Silicon dioxide

## How it is structured

2811.29 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2811, are heading 28.11; the last two, 29, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- Heading 28.11: Other inorganic acids and other inorganic oxygen compounds of non-metals
- Within the heading: Other inorganic oxygen compounds of non-metals
- Subheading 2811.29: Other

## In other countries

No national tariff lines under 2811.29 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2811.29 at six digits and add their own digits after it.

- Previous subheading: [2811.22](https://staging.border.bot/hs-codes/281122) Other inorganic oxygen compounds of non-metals: Silicon dioxide
- Next subheading: [2812.11](https://staging.border.bot/hs-codes/281211) Chlorides and chloride oxides: Carbonyl dichloride (phosgene)

## Frequently asked questions

### What does HS code 2811.29 cover?

HS code 2811.29 covers other inorganic oxygen compounds of non-metals, other than those classified in 2811.21 and 2811.22.

### Which heading and chapter is HS code 2811.29 in?

HS code 2811.29 is in heading 28.11 (other inorganic acids and other inorganic oxygen compounds of non-metals) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).

### Where are goods of heading 28.11 classified when 2811.29 doesn’t fit?

Other goods of heading 28.11 are classified under 2811.11 (other inorganic acids, hydrogen fluoride (hydrofluoric acid)), 2811.12 (other inorganic acids, hydrogen cyanide (hydrocyanic acid)), 2811.19 (other inorganic acids, other), 2811.21 (other inorganic oxygen compounds of non-metals, carbon dioxide) or 1 other.

## 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/281129.json