What HS code 3909.31 covers
HS code 3909.31 classifies poli(isocianato di metilenfenile) (mdi greggio, mdi polimerico). It is a subheading of heading 3909 (Resine amminiche, resine fenoliche e poliuretaniche, in forme primarie), in chapter 39 (Plastics and articles thereof), section VII of the Harmonized System. These six digits are identical in every country that uses the HS.
Classification path
Import duty for 3909.31
Aliquota NPF erga omnes (paesi terzi). L'IVA all'importazione, dal 17 al 27 percento a seconda del paese, e le eventuali misure antidumping, si applicano separatamente.
Fonte: TARIC
Solo aliquota base NPF. I dazi Section 301 e quelli IEEPA del 2025 possono sommarsi a questa per le merci dalla Cina.
Fonte: HTSUS / CBP
Imported this in 2024 or 2025?
Courts voided some of the tariffs importers paid on goods like this. You may be owed money back. The audit is free and we only get paid when you do.
Related codes in heading 3909
Not quite the right fit? These subheadings sit under the same heading and are the most common alternatives to 3909.31.
- 3909.10 Resine ureiche; resine di tiourea
- 3909.20 Resine melamminiche
- 3909.39 altro
- 3909.40 Resine fenoliche
- 3909.50 Poliuretani
Confirm the code for your exact product
A 6-digit subheading still covers a range of products. The wrong code at the border can mean overpaying duty, a delayed shipment, or a penalty. Describe your exact item and HS Mate confirms whether 3909.31 is right, with the duty rate and an audit trail your customs broker can accept.