# HS code 2852.90: Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams

> HS code 2852.90 covers inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams, other than those classified in 2852.10. It sits in heading 28.52 (inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams) 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 28.52 are classified under 2852.10 (chemically defined).

Source: https://staging.border.bot/hs-codes/285290
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 28](https://staging.border.bot/hs-codes/28) / [28.52](https://staging.border.bot/hs-codes/2852) / [2852.90](https://staging.border.bot/hs-codes/285290)

## Key facts

- HS code: 2852.90
- Covers: Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams
- Heading: [28.52: Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams](https://staging.border.bot/hs-codes/2852)
- 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 2852.90 covers inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams, other than those classified in 2852.10.

The legal text of the subheading is “Other”, in HS2022.

## What it doesn’t cover

Other goods of heading 28.52 are classified under 2852.10 (chemically defined).

- [2852.10](https://staging.border.bot/hs-codes/285210) Chemically defined

## How it is structured

2852.90 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2852, are heading 28.52; the last two, 90, 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 28.52: Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams
- Subheading 2852.90: Other

## In other countries

No national tariff lines under 2852.90 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2852.90 at six digits and add their own digits after it.

- Previous subheading: [2852.10](https://staging.border.bot/hs-codes/285210) Chemically defined
- Next subheading: [2853.10](https://staging.border.bot/hs-codes/285310) Cyanogen chloride (chlorcyan)

## Frequently asked questions

### What does HS code 2852.90 cover?

HS code 2852.90 covers inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams, other than those classified in 2852.10.

### Which heading and chapter is HS code 2852.90 in?

HS code 2852.90 is in heading 28.52 (inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams) 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 28.52 classified when 2852.90 doesn’t fit?

Other goods of heading 28.52 are classified under 2852.10 (chemically defined).

## 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/285290.json