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Styrene-Modified Petroleum Resin SM-120

Thermoplastic petroleum resin copolymerized with styrene, deriving >95% aromatic content from petroleum and styrene monomers. HTS 3911.90.25.00 for such other aromatic thermoplastics in primary forms.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.1%+25.0%31.1%
🇲🇽Mexico6.1%6.1%
🇨🇦Canada6.1%6.1%
🇩🇪Germany6.1%6.1%
🇯🇵Japan6.1%6.1%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3903.20.00Higher: 41.5% vs 31.1%

If styrene monomer units predominate over petroleum

Styrene-acrylonitrile where styrene > other units shifts to 3903.20 per predominance rule.

3919.90.50Higher: 40.8% vs 31.1%

If sold as self-adhesive plates in retail packs

Processed into adhesive sheets/plates moves to 3919 self-adhesives.

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Import Tips & Compliance

Document copolymer ratio proving aromatic predominance per note (a)(2)

Declare as primary granules, not adhesive compounds

Common issue: undervaluation in adhesive trade names

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