Bio-based Polyamide-4,10 Resin
Bio-sourced polyamide-4,10 resin beads with ≥95% monomer units from sebacic acid, falling under HTS 3908.90.70.00 as other polyamides in primary forms. Sustainable alternative for engineering applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If polyamide-imide
Polyamide-imides have dedicated subheading 3908.90.20.
If processed into tubes/pipes
Tubes and pipes of plastics classified functionally in 3917.
If made into household articles
Finished household plastic items go to 3923 (excluding photo albums per US note).
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
• Certify bio-content separately from HTS classification to avoid confusion
• Use ISCC certification for sustainability claims during import clearance
• Ensure no plasticizer addition, as it triggers 3920 classification
Related Products under HTS 3908.90.70.00
Polyamide-11 Resin Pellets
Polyamide-11, derived from 11-aminoundecanoic acid, is a high-performance polyamide with over 95% monomer content by weight, classifying it under 3908.90.70.00 as 'Other' polyamides in primary forms like pellets. Used in engineering plastics for its flexibility and low moisture absorption.
Polyamide-12 Granules
Polyamide-12 resin granules, made from laurolactam with ≥95% single monomer unit, fall under HTS 3908.90.70.00 as other polyamides in primary forms. Ideal for 3D printing filament and flexible tubing due to low density.
Polyamide-6I/6T Copolymer Pellets
Semi-aromatic copolyamide 6I/6T pellets where no single monomer predominates ≥95%, classified under 3908.90.70.00 by predominant polyamide monomer per subheading rules. High-temperature applications in electronics.
High-Viscosity Polyamide-610
Polyamide-610 pellets with high melt viscosity from hexamethylenediamine and sebacic acid, ≥95% monomers, classified 3908.90.70.00 as other polyamides. Applications in monofilaments and bristles.
Low-Temperature Polyamide Copolymer
Engineering-grade low-temperature polyamide copolymer pellets under 3908.90.70.00, classified by predominant amide monomer. Designed for cold-flexible applications like seals.
Polyamide Elastomer Base Resin
Base resin for polyamide elastomers (e.g., Pebax type) in primary form, falling under 3908.90.70.00 as other polyamides before elastomeric processing. Used in sports shoe midsoles.