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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily polystyrene with minimal acrylonitrile
Polymers where styrene monomer predominates over acrylonitrile fall under polystyrene homopolymers rather than named copolymers.
If chemically modified SAN
Chemically modified copolymers not specifically provided for are classified under 'Other' in ethylene copolymer series per subheading note (a)(3).
If blended with other polymers
Polymer blends not meeting the 95% threshold for named copolymer are classified by predominant monomer under other polyester headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify monomer composition via certificate of analysis showing styrene-acrylonitrile units comprising ≥95% by weight to qualify under this specific subheading
• Ensure proper SDS (Safety Data Sheets) accompany shipments as these are hazardous materials under DOT regulations
• Avoid misclassification as general polystyrene (3903.11) by confirming copolymer content exceeds simple homopolymer specifications
Related Products under HTS 3903.20.00.00
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.