What is HS code 390931 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
390931
Amino-resins; n.e.c. in heading no. 3909, in primary forms, poly(methylene phenyl isocyanate) (Crude MDI, polymeric MDI)
Heading 3909 — Amino-resins, phenolic resins and polyurethanes, in primary forms
Chapter 39: Plastics and articles thereof
Plain-language overview
Use HS-6 390931 when importing or exporting amino-resins, specifically poly(methylene phenyl isocyanate) in primary forms, such as crude MDI or polymeric MDI. These materials are crucial in producing flexible and rigid foams, coatings, and adhesives.
This code is distinct from HS-6 390932, which covers other types of amino-resins. While both fall under the same heading of amino-resins, 390931 specifically targets poly(methylene phenyl isocyanate), a key ingredient in polyurethane manufacturing.
When shipping products classified under this code, ensure that they are in their primary forms, as the classification does not apply to finished goods or mixtures. For example, a shipment of crude MDI in bulk containers would be correctly classified under this HS-6.
If you're dealing with formulations that include other resins or additives, you may need to consider different HS codes. For instance, if your product contains both crude MDI and other resins, you might need to classify it differently based on its primary component.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
amino-resins · poly(methylene phenyl isocyanate) · crude MDI · polymeric MDI · primary forms · polyurethane manufacturing · flexible foams · rigid foams · adhesives · coatings · bulk shipment · industrial materials · raw materials · intermediate products
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Bulk shipment of crude MDI in large containers
- Polymeric MDI used in the production of rigid foam insulation
- Intermediate product for polyurethane coatings
- Raw material for manufacturing adhesives in construction
- Polyurethane elastomers made from poly(methylene phenyl isocyanate)
- Crude MDI supplied to foam manufacturers
- Polymeric MDI used in automotive parts production
- Packaging of poly(methylene phenyl isocyanate) in drums for industrial use
Common questions
Frequent classification questions with short practical guidance.
How to classify crude MDI in customs?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What are primary forms of amino-resins?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Is polymeric MDI covered under HS 390931?
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What products use poly(methylene phenyl isocyanate)?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to import polyurethanes under HS code 390931?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Are there different HS codes for amino-resins?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
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.
Related topics
Common real-world topics that come up during code comparison.
How to classify poly(methylene phenyl isocyanate) for import?
Check the exact product specs and destination-country tariff notes before finalizing the code.
What shipments fall under HS code 390931?
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Guidelines for exporting crude MDI in primary forms
Check the exact product specs and destination-country tariff notes before finalizing the code.
Understanding amino-resins in HS code classification
Use this topic to narrow your shortlist, then validate the final code against legal wording.
What are the uses of polymeric MDI in industry?
Use this topic to narrow your shortlist, then validate the final code against legal wording.
How to determine the correct HS code for polyurethane materials?
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Are there specific regulations for importing amino-resins?
Check the exact product specs and destination-country tariff notes before finalizing the code.
What packaging is required for shipping crude MDI?
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 products fall under HS-6 390931?
- HS-6 390931 covers poly(methylene phenyl isocyanate) in its primary forms, including crude MDI and polymeric MDI, used primarily in polyurethane production.
- Can I classify finished polyurethane products under this HS code?
- No, HS-6 390931 is specifically for amino-resins in primary forms. Finished products made from these resins would require a different classification.
- What is the difference between crude MDI and polymeric MDI?
- Crude MDI is the unrefined form of the resin, while polymeric MDI refers to a processed version that is typically used in specific applications like rigid foam production.
- How do I ensure compliance when importing these materials?
- Make sure to provide accurate documentation and labeling that reflects the primary form of the amino-resins you are importing, as required by customs regulations.
- Are there any safety regulations for shipping crude MDI?
- Yes, crude MDI is classified as hazardous, so you must comply with safety regulations, including proper labeling, packaging, and transportation guidelines.
- What should I do if my product contains multiple resins?
- If your product contains multiple resins, classify it based on the primary component. If unsure, consult with a customs broker for proper classification.
- Is there a specific packaging requirement for poly(methylene phenyl isocyanate)?
- Yes, poly(methylene phenyl isocyanate) should be packaged in containers that comply with hazardous material regulations, ensuring safety during transport.
- Can I use this HS code for exports?
- Yes, HS-6 390931 can be used for exports as long as the product meets the definition of amino-resins in primary forms.
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