Styrene-acrylonitrile (SAN) copolymers
Polymers of styrene, in primary forms: > Styrene-acrylonitrile (SAN) copolymers
Duty Rate (from China)
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
Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Products classified under HTS 3903.20.00.00
Styrene-Acrylonitrile (SAN) Copolymer Pellets
Transparent SAN copolymer pellets used for injection molding applications. These pellets consist of styrene and acrylonitrile monomers where both units contribute 95% or more by weight of the total polymer content, meeting the specific subheading requirements for 3903.20.00.00. Primarily supplied in 25kg bags for industrial processing.
High-Clarity SAN Copolymer Resin
SAN copolymer resin in granular form designed for optical applications like light diffusers. Meets 3903.20.00.00 criteria with ≥95% styrene-acrylonitrile content by weight. Excellent balance of clarity, rigidity, and chemical resistance for consumer electronics housings.
SAN Copolymer for Medical Device Extrusion
USP Class VI certified SAN copolymer specifically for medical syringe barrels and IV components. Meets stringent biocompatibility while maintaining 3903.20.00.00 classification through ≥95% styrene-acrylonitrile composition. Supplied as sterile-grade pellets.
Flame-Retardant SAN Copolymer Pellets
V-0 rated flame retardant SAN copolymer for electrical enclosures and battery casings. Halogen-free formulation maintains primary polymer classification under 3903.20.00.00 with core SAN content ≥95%. Critical for UL94 compliance applications.
Optical-Grade SAN Copolymer Masterbatch
Pre-colored optical SAN copolymer masterbatch for LCD bezels and instrument panels. Maintains 3903.20.00.00 classification as colorants <5% total weight per subheading note (a)(1). High light transmission with precise color matching.
Impact-Modified SAN Copolymer Granules
SAN copolymer granules with rubber modification for improved toughness in appliance components. Chemical modification keeps classification under unmodified SAN per subheading notes, with core styrene-acrylonitrile units ≥95% by weight. Used in blender housings and power tool casings.