# 391400 — Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms: Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms

HS code 391400 classifies Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms: Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms. It belongs to Chapter 39 (Plastics and articles thereof) of Section VII (Plastics and articles thereof; rubber and articles thereof) of the Harmonized System. Duty rates are recorded for 1 country.

> Section VII · Plastics and articles thereof; rubber and articles thereof
> Chapter 39 · Plastics and articles thereof

**HS code:** `391400`

## Description

Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms

## Duty rates

| Country | Rate | Programme |
| --- | --- | --- |
| US United States | Free–3.9% | MFN |

Rates effective as of 2026-01-01.

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Source: https://hscode.eximagent.ai/39/391400
Last updated: 2026-06-03
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