# HS code 3914.00: Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms

> HS code 3914.00 covers ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms. It sits in heading 39.14 (ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms) in chapter 39 (plastics and articles thereof). It is the only subheading of heading 39.14, so every good of the heading is classified here. National tariff lines under 3914.00 are live on border.bot for the United States (2 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/391400
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 39](https://border.bot/hs-codes/39) / [39.14](https://border.bot/hs-codes/3914) / [3914.00](https://border.bot/hs-codes/391400)

## Key facts

- HS code: 3914.00
- Covers: Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms
- Heading: [39.14: Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms](https://border.bot/hs-codes/3914)
- Chapter: [39: Plastics and articles thereof](https://border.bot/hs-codes/39)
- Edition: HS2022
- Duty in the United States: [See its 2 lines](https://border.bot/countries/united-states/hs-codes/391400)

## What this code covers

HS code 3914.00 covers ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms.

The legal text of the subheading is “Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms”, in HS2022.

## What it doesn’t cover

It is the only subheading of heading 39.14, so every good of the heading is classified here.

## How it is structured

3914.00 is a six-digit subheading. Its first two digits, 39, are the chapter; the first four, 3914, are heading 39.14; the last two, 00, 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 39.14: Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms
- Subheading 3914.00: Ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms

## In other countries

National tariff lines under 3914.00 are live on border.bot for the United States (2 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/391400): 2 lines, used by 1 other country

- Previous subheading: [3913.90](https://border.bot/hs-codes/391390) Other
- Next subheading: [3915.10](https://border.bot/hs-codes/391510) Of polymers of ethylene

## Frequently asked questions

### What does HS code 3914.00 cover?

HS code 3914.00 covers ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms.

### Which heading and chapter is HS code 3914.00 in?

HS code 3914.00 is in heading 39.14 (ion-exchangers based on polymers of headings 39.01 to 39.13, in primary forms) in chapter 39 (plastics and articles thereof).

### Where are goods of heading 39.14 classified when 3914.00 doesn’t fit?

3914.00 is the only subheading of heading 39.14, so every good of the heading is classified there.

### Which countries’ tariffs list national lines under HS code 3914.00?

National tariff lines under 3914.00 are live on border.bot for the United States (2 lines, 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/391400.json