3903.90.10.00/MBS Copolymer Resin Pellets/Japan

MBS Copolymer Resin Pellets from Japan

Transparent pellets of methyl methacrylate-butadiene-styrene (MBS) copolymer, where the comonomer units of methyl methacrylate, butadiene, and styrene contribute 95% or more by weight of the total polymer content. This specific copolymer is classified under HTS 3903.90.1000 as it falls within the named subheading for MBS copolymers in primary forms. Used primarily as an impact modifier for rigid PVC in manufacturing.

Duty Rate — Japan → United States

16.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Calculate with your customs value Verify classification with AI

Import Tips

• Verify copolymer composition via lab testing to confirm 95%+ MBS comonomer content per subheading note (a)(2); provide manufacturer's technical data sheet as supporting documentation

• Declare as primary form (pellets/granules) to avoid misclassification as compounded articles

• Watch for anti-dumping duties on certain Asian-sourced MBS resins