What is HS code 391400 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
391400
Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms
Heading 3914 — Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms
Chapter 39: Plastics and articles thereof
Plain-language overview
Use HS-6 391400 when importing or exporting ion-exchangers made from polymers in primary forms. These products are crucial in water treatment processes, such as softening hard water or purifying drinking water. For instance, a shipment of ion-exchange resin beads used in water filtration systems would fall under this code.
This HS-6 line specifically covers ion-exchangers that are based on polymers classified under headings 3901 to 3913. These materials are often used in various applications, including chemical processing and pharmaceuticals. In contrast, HS-6 391410 covers ion-exchangers in the form of granules or powders, which may have different applications and specifications.
When classifying ion-exchangers, it's essential to note that they differ from other plastic products in this chapter, such as general-purpose plastics or films. Ion-exchangers are specialized materials designed for specific chemical interactions, making their classification distinct within the broader category of plastics.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
ion-exchangers · polymers · water treatment · resin beads · chemical processing · primary forms · filtration systems · softening hard water · wastewater treatment · pharmaceutical applications · granular materials · selective ion removal · laboratory use · industrial applications
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Ion-exchange resin beads for water softening systems
- Polystyrene-based ion-exchangers for laboratory use
- Polymer-based resins used in chemical processing
- Granular ion-exchange materials for wastewater treatment
- Resin cartridges for home water filtration units
- Ion-exchangers used in pharmaceutical manufacturing processes
- Specialized resins for selective ion removal in industrial applications
Common questions
Frequent classification questions with short practical guidance.
How to classify ion-exchangers in customs?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Examples of products under HS code 391400
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Are ion-exchangers considered plastics?
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What are primary forms of ion-exchangers?
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Differences between HS-6 391400 and 391410
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How to import ion-exchange resins?
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What applications use ion-exchangers in primary forms?
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Related topics
Common real-world topics that come up during code comparison.
How to classify ion-exchangers based on polymers
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What products fall under HS code 391400
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Understanding ion-exchangers in water treatment
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Differences between ion-exchangers and other plastics
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
Shipping ion-exchange resin beads for water filtration
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Classification of polymer-based ion-exchangers
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Applications of ion-exchangers in chemical processing
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Guidelines for importing ion-exchange materials
Check the exact product specs and destination-country tariff notes before finalizing the code.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products are classified under HS-6 391400?
- HS-6 391400 covers ion-exchangers made from polymers, primarily used in water treatment and chemical processing, such as resin beads and granular materials.
- How do I know if my product qualifies for HS-6 391400?
- If your product is a polymer-based ion-exchanger in primary form, such as resin beads or granules, it likely qualifies for HS-6 391400.
- Can I use HS-6 391400 for ion-exchangers in different forms?
- No, HS-6 391400 specifically applies to ion-exchangers in primary forms. For other forms, check the appropriate HS codes like 391410.
- What are the main applications of ion-exchangers?
- Ion-exchangers are mainly used in water treatment, pharmaceuticals, and chemical processing for tasks like softening water and purifying chemicals.
- Are there any specific packaging requirements for shipping ion-exchangers?
- While there are no universal packaging requirements, ensure that ion-exchangers are securely packaged to prevent contamination and damage during transport.
- How can I find more information about HS-6 391400?
- Consult the Harmonized Tariff Schedule or reach out to a customs broker for detailed guidance on HS-6 391400 and related classifications.
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