What are amino-resins used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-4 · Heading
3909 — Amino-resins, phenolic resins and polyurethanes, in primary forms
Chapter 39: Plastics and articles thereof
Plain-language overview
Use HS-4 3909 when importing amino-resins, phenolic resins, or polyurethanes in primary forms. For example, if you are bringing in a shipment of urea-formaldehyde resin for use in wood adhesives, this heading applies directly.
To distinguish between the HS-6 lines, consider the specific type of resin. For instance, if your product is a melamine resin, you would classify it under HS-6 390920. If it's a different amino-resin, like urea or thiourea, then HS-6 390910 is appropriate.
Another important distinction is between the types of polyurethanes. If your shipment consists of standard polyurethanes, you'd use HS-6 390950. However, if it includes crude or polymeric MDI, you'd need to refer to HS-6 390931 or HS-6 390939, depending on the specific formulation.
Keywords & topics
Useful terms traders and brokers use for this HS-4 heading.
amino-resins · phenolic resins · polyurethanes · primary forms · urea resins · melamine resins · MDI · polymeric MDI · resin classification · import regulations · HS-4 3909 · HS-6 subheadings · trade compliance · shipment classification · customs codes
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Urea-formaldehyde resin for wood adhesives
- Melamine resin used in laminates
- Polyurethane foam for insulation
- Poly(methylene phenyl isocyanate) (Crude MDI)
- Phenolic resin for circuit boards
- Thiourea resin for coatings
- Polymeric MDI for automotive applications
Common questions
Frequent classification questions with short practical guidance.
How to classify phenolic resins for import?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What is the difference between crude MDI and polymeric MDI?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Which HS code for melamine resin?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Are polyurethanes subject to tariffs?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to determine the correct HS-6 code for my resin?
Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.
What types of products fall under HS-4 3909?
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 classify amino-resins for customs
Check the exact product specs and destination-country tariff notes before finalizing the code.
difference between phenolic and amino resins
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
importing polyurethanes in primary forms
Check the exact product specs and destination-country tariff notes before finalizing the code.
HS code for urea-formaldehyde resin
Use this topic to narrow your shortlist, then validate the final code against legal wording.
understanding HS-6 codes for resins
Use this topic to narrow your shortlist, then validate the final code against legal wording.
what is crude MDI in resin classification
Use this topic to narrow your shortlist, then validate the final code against legal wording.
requirements for importing melamine resins
Check the exact product specs and destination-country tariff notes before finalizing the code.
how to choose the right HS subheading for resins
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 are classified under HS-4 3909?
- HS-4 3909 covers amino-resins, phenolic resins, and polyurethanes in primary forms, including various formulations like urea and melamine resins.
- How do I determine the correct HS-6 code for my resin?
- Identify the specific type of resin you are importing. For example, use **HS-6 390910** for urea resins and **HS-6 390920** for melamine resins.
- Are there any specific import regulations for polyurethanes?
- Yes, polyurethanes may have specific import regulations and tariffs depending on their formulation. Check the relevant customs guidelines.
- What is the significance of crude MDI in resin classification?
- Crude MDI is classified under **HS-6 390931** and is used in specific applications. Ensure you classify it correctly to avoid customs issues.
- Can I use HS-4 3909 for all types of resins?
- No, HS-4 3909 is specific to amino-resins, phenolic resins, and polyurethanes. Ensure you select the correct HS-6 subheading for your product.
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HS-6 subheadings (6)
- 390910Amino-resins; urea and thiourea resins, in primary forms
- 390920Amino-resins; melamine resins, in primary forms
- 390931Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)
- 390939Amino-resins; n.e.c. in heading no. 3909, in primary forms, other than poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)
- 390940Phenolic resins; in primary forms
- 390950Polyurethanes; in primary forms