# United States tariff line 2846.90.20.40: Other

> In the United States tariff, line 2846.90.20.40 covers mixtures of rare-earth oxides or of rare-earth chlorides, rare-earth oxides except cerium oxides. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2846.90 in heading 28.46 (chapter 28).

Source: https://border.bot/countries/united-states/hs-codes/2846902040
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) / [2846.90](https://border.bot/countries/united-states/hs-codes/284690) / [2846.90.20.40](https://border.bot/countries/united-states/hs-codes/2846902040)

## Key facts

- Tariff line: 2846.90.20.40
- Covers: Mixtures of rare-earth oxides or of rare-earth chlorides, rare-earth oxides except cerium oxides
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2846.90](https://border.bot/hs-codes/284690)

## What this line covers

In the United States tariff, line 2846.90.20.40 covers mixtures of rare-earth oxides or of rare-earth chlorides, rare-earth oxides except cerium oxides.

Its legal text is “Other”, read under “Other”, “Mixtures of rare-earth oxides or of rare-earth chlorides” and “Rare-earth oxides except cerium oxides”.

## How it is structured

It falls under HS subheading 2846.90 in heading 28.46 (chapter 28). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- Heading 28.46: Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals
- Subheading 2846.90: Other
- Within the subheading: Mixtures of rare-earth oxides or of rare-earth chlorides
- Within the subheading: Rare-earth oxides except cerium oxides
- Line 2846.90.20.40: Other

## Duty

Goods under this line enter free of general (MFN) duty.

The rate is published on 2846.90.20.

## In other countries

No other national tariff on border.bot has live lines under 2846.90 yet.

- [The Harmonized System text for 2846.90](https://border.bot/hs-codes/284690)

## Other lines under 2846.90

- [2846.90.20.05](https://border.bot/countries/united-states/hs-codes/2846902005) Containing lanthanum as the predominant metal
- [2846.90.20.15](https://border.bot/countries/united-states/hs-codes/2846902015) Containing yttrium or scandium as the predominant metal
- [2846.90.20.82](https://border.bot/countries/united-states/hs-codes/2846902082) Containing yttrium or scandium as the predominant metal
- [2846.90.20.84](https://border.bot/countries/united-states/hs-codes/2846902084) Other
- [2846.90.40.00](https://border.bot/countries/united-states/hs-codes/2846904000) Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent
- [2846.90.80.70](https://border.bot/countries/united-states/hs-codes/2846908070) Containing lanthanum as the predominant metal
- [2846.90.80.75](https://border.bot/countries/united-states/hs-codes/2846908075) Other
- [2846.90.80.90](https://border.bot/countries/united-states/hs-codes/2846908090) Other

- Previous line: [2846.90.20.15](https://border.bot/countries/united-states/hs-codes/2846902015) Containing yttrium or scandium as the predominant metal
- Next line: [2846.90.20.82](https://border.bot/countries/united-states/hs-codes/2846902082) Containing yttrium or scandium as the predominant metal

## Frequently asked questions

### What does tariff line 2846.90.20.40 cover in the United States tariff?

In the United States tariff, line 2846.90.20.40 covers mixtures of rare-earth oxides or of rare-earth chlorides, rare-earth oxides except cerium oxides.

### What is the general (MFN) duty on 2846.90.20.40 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 2846.90.20.

## 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/2846902040.json