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HS-4 · Heading

3907Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms

Chapter 39: Plastics and articles thereof

Plain-language overview

Use HS-4 3907 when importing materials like polyacetals or polycarbonates in primary forms. For example, if you're shipping polyacetal granules for plastic manufacturing, this is the correct heading.

Choosing the right subheading under HS-4 3907 is crucial. For instance, if your product is a polyether in primary form but not a polyacetal, you need to decide between 390721 for bis(polyoxyethylene) methylphosphonate or 390729 for other polyethers.

If your shipment includes polycarbonates, you should classify it under HS-6 390740. However, if you have polyesters, you'll need to determine if they are saturated or unsaturated, which will guide you to 390799 or 390791 respectively.

Keywords & topics

Useful terms traders and brokers use for this HS-4 heading.

polyacetals · polyethers · epoxide resins · polycarbonates · alkyd resins · polyesters · primary forms · import classification · HS-4 3907 · resin shipping · plastic materials · trade compliance · customs codes · polymer import · viscosity specifications · chemical products

Examples

Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.

  • Polyacetals in granule form for injection molding.
  • Polyethers like bis(polyoxyethylene) methylphosphonate for chemical applications.
  • Epoxide resins in liquid form for coatings.
  • Polycarbonates used in optical applications.
  • Alkyd resins for paint formulations.
  • Poly(ethylene terephthalate) with high viscosity for textile production.
  • Poly(lactic acid) for biodegradable packaging solutions.

Common questions

Frequent classification questions with short practical guidance.

What is HS-4 3907 used for?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to classify polyacetals for import?

Write down material, use, and product form first, then compare nearby lines before you lock the code.

Are polyethers subject to tariffs?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What is the difference between saturated and unsaturated polyesters?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How to determine viscosity for poly(ethylene terephthalate)?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

What are the applications of epoxide resins?

Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.

How do I find the right HS code for my plastic shipment?

Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.

Related topics

Common real-world topics that come up during code comparison.

classification of polyacetals in customs

Check the exact product specs and destination-country tariff notes before finalizing the code.

importing polyethers in primary forms

Check the exact product specs and destination-country tariff notes before finalizing the code.

epoxide resins for industrial use

Use this topic to narrow your shortlist, then validate the final code against legal wording.

polycarbonates in manufacturing processes

Use this topic to narrow your shortlist, then validate the final code against legal wording.

alkyd resins for paint applications

Use this topic to narrow your shortlist, then validate the final code against legal wording.

viscosity requirements for poly(ethylene terephthalate)

Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.

saturated vs unsaturated polyesters for import

Check the exact product specs and destination-country tariff notes before finalizing the code.

how to classify poly(lactic acid) for shipping

Use this topic to narrow your shortlist, then validate the final code against legal wording.

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What types of products fall under HS-4 3907?
HS-4 3907 includes polyacetals, polyethers, epoxide resins, polycarbonates, alkyd resins, and various polyesters in primary forms.
How do I choose between HS-6 subheadings?
Consider the specific chemical structure and properties of your product. For example, if it’s a polyether but not a polyacetal, you would use either 390721 or 390729.
What is the significance of viscosity in HS-4 3907?
Viscosity is crucial for classifying poly(ethylene terephthalate). Products with a viscosity of 78ml/g or higher fall under 390761, while those below go under 390769.
Are there any special regulations for importing these materials?
Yes, certain materials may be subject to specific regulations or tariffs. Always check the latest customs guidelines for compliance.
Can I use HS-4 3907 for recycled plastics?
HS-4 3907 is primarily for primary forms. If your product is recycled, you may need to look for a different classification.
What packaging requirements should I consider?
Ensure that your products are packaged to prevent contamination and damage, as this can affect classification and compliance.

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