HS Code 3914
Ion-Exchangers Based on Polymers
HS code 3914 covers ion-exchange resins in primary forms based on polymers 3901-3913, used primarily for water softening and chemical purification.
4-digit Section VIIFCL
HS Code 3914 — Ion-Exchangers Based on Polymers
Ion-exchangers are specialized resins used to purify water or concentrate minerals. They work by swapping ions between the resin and a liquid, making them critical for water treatment and the power industry.
What's included
- Ion-exchange resins
- Cation exchange resins
- Anion exchange resins
- Chelating resins
What's excluded
- Finished water filter cartridges → use
8421(Finished machinery for filtering is classified under Chapter 84.)
Common examples
- Amberlite ion exchange resin
- Sulphonated polystyrene beads
- Macroporous anion exchange resin
- Water softener resin beads
Frequently asked questions
Can ion-exchangers be liquid?
While most are spherical beads (solids), the code covers primary forms which technically include liquids and dispersions.
Trade & shipping notes
- Typical duty range: 0% - 6.5%
- Documentation: Analysis certificates should specify the ionic form (e.g., Sodium or Hydrogen).
- Typical shipping mode: FCL
- Top exporters: China, United States, Germany, France
- Top importers: India, Russia, Brazil, United States
Related HS codes
Key takeaway
High-tech industrial resins used for purification and softening processes.
Related HS codes
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