# HS code 3912.39: Cellulose ethers

> HS code 3912.39 covers cellulose ethers, other than those classified in 3912.31. It sits in heading 39.12 (cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms) in chapter 39 (plastics and articles thereof). Other goods of heading 39.12 are classified under 3912.11 (cellulose acetates, non-plasticised), 3912.12 (cellulose acetates, plasticised), 3912.20 (cellulose nitrates (including collodions)), 3912.31 (cellulose ethers, carboxymethylcellulose or its salts) and 1 other. National tariff lines under 3912.39 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/391239
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 39](https://border.bot/hs-codes/39) / [39.12](https://border.bot/hs-codes/3912) / [3912.39](https://border.bot/hs-codes/391239)

## Key facts

- HS code: 3912.39
- Covers: Cellulose ethers
- Heading: [39.12: Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms](https://border.bot/hs-codes/3912)
- Chapter: [39: Plastics and articles thereof](https://border.bot/hs-codes/39)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/391239)

## What this code covers

HS code 3912.39 covers cellulose ethers, other than those classified in 3912.31.

The legal text of the subheading is “Cellulose ethers: Other”, read under “Cellulose ethers”, in HS2022.

## What it doesn’t cover

Other goods of heading 39.12 are classified under 3912.11 (cellulose acetates, non-plasticised), 3912.12 (cellulose acetates, plasticised), 3912.20 (cellulose nitrates (including collodions)), 3912.31 (cellulose ethers, carboxymethylcellulose or its salts) and 1 other.

- [3912.11](https://border.bot/hs-codes/391211) Cellulose acetates: Non-plasticised
- [3912.12](https://border.bot/hs-codes/391212) Cellulose acetates: Plasticised
- [3912.20](https://border.bot/hs-codes/391220) Cellulose nitrates (including collodions)
- [3912.31](https://border.bot/hs-codes/391231) Cellulose ethers: Carboxymethylcellulose and its salts
- [3912.90](https://border.bot/hs-codes/391290) Other

## How it is structured

3912.39 is a six-digit subheading. Its first two digits, 39, are the chapter; the first four, 3912, are heading 39.12; the last two, 39, identify the subheading within the heading.

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

- Chapter 39: Plastics and articles thereof
- Heading 39.12: Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms
- Within the heading: Cellulose ethers
- Subheading 3912.39: Other

## In other countries

National tariff lines under 3912.39 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/391239): 1 line, used by 1 other country

- Previous subheading: [3912.31](https://border.bot/hs-codes/391231) Cellulose ethers: Carboxymethylcellulose and its salts
- Next subheading: [3912.90](https://border.bot/hs-codes/391290) Other

## Frequently asked questions

### What does HS code 3912.39 cover?

HS code 3912.39 covers cellulose ethers, other than those classified in 3912.31.

### Which heading and chapter is HS code 3912.39 in?

HS code 3912.39 is in heading 39.12 (cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms) in chapter 39 (plastics and articles thereof).

### Where are goods of heading 39.12 classified when 3912.39 doesn’t fit?

Other goods of heading 39.12 are classified under 3912.11 (cellulose acetates, non-plasticised), 3912.12 (cellulose acetates, plasticised), 3912.20 (cellulose nitrates (including collodions)), 3912.31 (cellulose ethers, carboxymethylcellulose or its salts) and 1 other.

### Which countries’ tariffs list national lines under HS code 3912.39?

National tariff lines under 3912.39 are live on border.bot for the United States (1 line, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 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://border.bot/hs-codes/391239.json