# HS code 2511.20: Natural barium carbonate (witherite)

> HS code 2511.20 covers natural barium carbonate (witherite). It sits in heading 25.11 (natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16) in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement). Other goods of heading 25.11 are classified under 2511.10 (natural barium sulphate (barytes)).

Source: https://staging.border.bot/hs-codes/251120
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 25](https://staging.border.bot/hs-codes/25) / [25.11](https://staging.border.bot/hs-codes/2511) / [2511.20](https://staging.border.bot/hs-codes/251120)

## Key facts

- HS code: 2511.20
- Covers: Natural barium carbonate (witherite)
- Heading: [25.11: Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16](https://staging.border.bot/hs-codes/2511)
- Chapter: [25: Salt; sulphur; earths and stone; plastering materials, lime and cement](https://staging.border.bot/hs-codes/25)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 2511.20 covers natural barium carbonate (witherite).

The legal text of the subheading is “Natural barium carbonate (witherite)”, in HS2022.

## What it doesn’t cover

Other goods of heading 25.11 are classified under 2511.10 (natural barium sulphate (barytes)).

- [2511.10](https://staging.border.bot/hs-codes/251110) Natural barium sulphate (barytes)

## How it is structured

2511.20 is a six-digit subheading. Its first two digits, 25, are the chapter; the first four, 2511, are heading 25.11; the last two, 20, identify the subheading within the heading.

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

- Chapter 25: Salt; sulphur; earths and stone; plastering materials, lime and cement
- Heading 25.11: Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16
- Subheading 2511.20: Natural barium carbonate (witherite)

## In other countries

No national tariff lines under 2511.20 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2511.20 at six digits and add their own digits after it.

- Previous subheading: [2511.10](https://staging.border.bot/hs-codes/251110) Natural barium sulphate (barytes)
- Next subheading: [2512.00](https://staging.border.bot/hs-codes/251200) Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less

## Frequently asked questions

### What does HS code 2511.20 cover?

HS code 2511.20 covers natural barium carbonate (witherite).

### Which heading and chapter is HS code 2511.20 in?

HS code 2511.20 is in heading 25.11 (natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16) in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement).

### Where are goods of heading 25.11 classified when 2511.20 doesn’t fit?

Other goods of heading 25.11 are classified under 2511.10 (natural barium sulphate (barytes)).

## 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/251120.json