What is HS code 390791 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
390791
Polyesters; n.e.c. in heading no. 3907, unsaturated, in primary forms
Heading 3907 — Polyacetals, 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-6 390791 when importing or exporting unsaturated polyesters in primary forms. This includes products like liquid polyester resins used in coatings and adhesives, often shipped in bulk containers or drums.
This code specifically covers unsaturated polyesters that are not classified elsewhere in heading 3907. For instance, if you have a shipment of a liquid polyester resin for fiberglass applications, this is the correct classification.
If you’re considering HS-6 390792 instead, note that it covers saturated polyesters, which differ in chemical structure and application. Unsaturated polyesters are typically used in applications requiring curing, such as in composite materials.
Understanding the distinction between these codes is crucial for compliance and accurate tariff application. Ensure your product specifications match the criteria for HS-6 390791 to avoid classification issues.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
unsaturated polyester resin · polyester in primary forms · liquid polyester shipments · polyester for coatings · fiberglass resin · bulk polyester containers · polyester applications · composite materials · automotive repair resin · marine coatings polyester · casting resin · construction polyester · polyester classification · tariff for polyesters · polyester export regulations
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Liquid unsaturated polyester resin in 200-liter drums for fiberglass production
- Bulk shipment of polyester resin used in automotive body repair kits
- Unsaturated polyester used in the production of reinforced plastic parts
- Containers of polyester resin for use in marine coatings
- Liquid polyester resin for casting applications in art and design
- Unsaturated polyester shipped in IBC totes for construction applications
- Polyester resin used in making composite materials for wind turbine blades
Common questions
Frequent classification questions with short practical guidance.
How to classify unsaturated polyesters?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What are examples of products under HS-6 390791?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Can I use HS-6 390791 for all polyesters?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What is the difference between HS-6 390791 and 390792?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to import unsaturated polyesters?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the shipping requirements for polyester resins?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What industries use unsaturated polyesters?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
How to determine if my product fits HS-6 390791
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Examples of unsaturated polyesters for shipping classification
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Guidelines for importing polyester resins under HS-6 390791
Check the exact product specs and destination-country tariff notes before finalizing the code.
Differences between unsaturated and saturated polyesters in HS codes
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
What documentation is needed for HS-6 390791 products?
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Common uses for unsaturated polyester resins in manufacturing
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Classification challenges with polyester resin shipments
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Best practices for exporting unsaturated polyesters
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 fall under HS-6 390791?
- HS-6 390791 covers unsaturated polyesters in primary forms, such as liquid resins used in coatings, adhesives, and composite materials.
- How do I know if my polyester is unsaturated?
- Unsaturated polyesters typically contain double bonds in their structure, allowing them to cure and harden when mixed with catalysts.
- Can I classify my polyester resin under a different HS code?
- If your polyester is saturated, you should use **HS-6 390792** instead, as it covers a different chemical structure and application.
- What are the shipping requirements for unsaturated polyesters?
- Ensure proper labeling and packaging according to safety regulations, as some unsaturated polyesters can be hazardous materials.
- Is there a specific tariff rate for HS-6 390791?
- Tariff rates can vary by country, so check with your customs broker or local customs authority for the applicable rates for HS-6 390791.
- What industries commonly use unsaturated polyesters?
- Industries such as automotive, marine, construction, and arts and crafts frequently use unsaturated polyesters for various applications.
- What documentation do I need for importing polyester resins?
- You typically need a commercial invoice, packing list, and possibly a safety data sheet (SDS) for hazardous materials.
- How can I ensure my product is classified correctly?
- Review product specifications and consult with a customs broker if unsure about the correct HS code for your polyester resin.
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