Chapter 3908 — Customs Tariff Headings
Products classified under Tariff item 39.08
Capron Nylon-6 Chips
High-viscosity nylon-6 chips produced by polymerization of caprolactam, supplied in primary form for fiber spinning in textile yarn production. The caprolactam monomer unit contributes 95% or more by weight of the total polymer content, meeting the classification criteria for polyamide-6 under tariff item 3908.10.00.
3908.10.00Nylon 11 Resin Beads
Biosourced polyamide-11 resin beads derived from 11-aminoundecanoic acid, used in high-performance cables and automotive parts. The 11-aminoundecanoic acid monomer unit contributes 95% or more by weight, qualifying it as polyamide-11 under tariff item 3908.10.00.
3908.10.00Nylon 12 Extrusion Grade Pellets
Low-melt nylon-12 extrusion grade pellets optimized for film extrusion and tubing, produced from laurolactam monomer. The laurolactam content is 95% or more by weight, classifying it as polyamide-12 under tariff item 3908.10.00.
3908.10.00Nylon 6,12 Copolymer Pellets
Balanced polyamide-6,12 copolymer pellets offering hybrid properties of nylon-6 and nylon-12, explicitly named in tariff item 3908.10.00. The combined monomer units of hexamethylenediamine and dodecanedioic acid contribute 95% or more by weight of the polymer content.
3908.10.00Nylon 6,6 Polymer Granules
Polyamide-6,6 granules derived from hexamethylenediamine and adipic acid monomers, supplied in primary form for extrusion processes. The constituent monomers contribute 95% or more by weight of the total polymer content, meeting the classification criteria for polyamide-6,6 under tariff item 3908.10.00.
3908.10.00Nylon 6 Resin Pellets
Polyamide-6 resin in the form of translucent pellets used for injection molding in industrial applications. The caprolactam monomer unit contributes 95% or more by weight of the total polymer content, qualifying it as polyamide-6 under tariff item 3908.10.00.
3908.10.00PA12 Polyamide-12 Powder
Fine powder form of polyamide-12 (laurolactam-based) used in selective laser sintering for 3D printing. The laurolactam monomer content is 95% or more by weight, and the powder is in primary form, classifying it under tariff item 3908.10.00.
3908.10.00Polyamide-6,10 Pellets
Engineering-grade polyamide-6,10 pellets from hexamethylenediamine and sebacic acid, offering high moisture resistance. This polyamide is explicitly named in tariff item 3908.10.00, and the constituent monomers contribute 95% or more by weight of the polymer content.
3908.10.00Polyamide-6,9 Engineering Pellets
Specialty polyamide-6,9 pellets combining nylon-6 and nylon-9 properties for demanding applications. This polyamide is explicitly named in tariff item 3908.10.00, with the constituent monomers contributing 95% or more by weight of the polymer content.
3908.10.00Rilsan PA11 Fine Powder
Rilsan polyamide-11 fine powder for rotational molding applications, derived from 11-aminoundecanoic acid. The monomer content is 95% or more by weight, and the powder is in primary form, classifying it under tariff item 3908.10.00.
3908.10.00Technyl PA66 Pellets
Technyl polyamide-6,6 pellets for under-hood automotive components, produced from hexamethylenediamine and adipic acid. The monomer composition meets the 95% threshold for polyamide-6,6, and the pellets are in primary form, classifying them under tariff item 3908.10.00.
3908.10.00Ultramid Nylon-6 Granules
BASF Ultramid B nylon-6 granules for blow molding containers, produced by high-purity caprolactam polymerization. The caprolactam monomer unit contributes 95% or more by weight, classifying it as polyamide-6 under tariff item 3908.10.00.
3908.10.00Vestamid L Nylon-12 Powder
Evonik Vestamid L polyamide-12 powder for powder coating applications, derived from laurolactam. The laurolactam monomer content is 95% or more by weight, and the powder is in primary form, classifying it under tariff item 3908.10.00.
3908.10.00Zytel Nylon 6,6 Pellets
Branded Zytel polyamide-6,6 pellets for injection molding of mechanical parts, produced from hexamethylenediamine and adipic acid. The monomer composition meets the 95% threshold for polyamide-6,6, and the pellets are in primary form, classifying them under tariff item 3908.10.00.
3908.90.00Bio-based Polyamide-4,10 Resin
Bio-based polyamide-4,10 resin beads with 95% or more monomer units from sebacic acid, falling under 'Other' polyamides in primary forms. This polyamide is not specifically named in subheading 3908.10, so it is classified as 'Other' polyamides.
3908.90.00Engineering Grade Trogamid CX Pellets
Trogamid CX engineering resin pellets, a copolyamide of bis(4-amino-3-methylcyclohexyl)methane, isophthalic acid, and laurolactam, in primary form for 3D printing filament production. This copolyamide does not meet the 95% monomer threshold for a named polyamide subheading, so it falls under 'Other' polyamides in primary forms.
3908.90.00Grilamid TR Transparent Polyamide Pellets
Grilamid TR pellets, a semi-crystalline copolyamide based on bis(4-amino-3-methylcyclohexyl)methane, isophthalic acid, and laurolactam, in primary granular form for extrusion and molding. As a copolymer without a single predominant monomer reaching 95%, it is classified under 'Other' polyamides.
3908.90.00High-Clarity Polyamide Copolymer Resin for Eyewear
High-clarity pelletized resin from bis(4-amino-3-methylcyclohexyl)methane-isophthalic acid-laurolactam copolymer, in primary form for injection-molded eyewear frames. This copolyamide is not a named polyamide in subheading 3908.10 and is therefore classified as 'Other' polyamides.
3908.90.00High-Viscosity Polyamide-610
Polyamide-610 pellets with high melt viscosity from hexamethylenediamine and sebacic acid, with 95% or more monomers, classified as 'Other' polyamides. This polyamide is not specifically named in subheading 3908.10, so it falls under 'Other' polyamides in primary forms.
3908.90.00Laurolactam-Based Transparent PA Resin Pellets
Primary pellets of laurolactam-isophthalic acid-bis(4-amino-3-methylcyclohexyl)methane copolymer for medical device molding. The copolymer composition does not meet the 95% threshold for named polyamides, so it falls under 'Other' polyamides in primary forms.
3908.90.00Low-Temperature Polyamide Copolymer
Engineering-grade low-temperature polyamide copolymer pellets classified by predominant amide monomer. Designed for cold-flexible applications like seals, this copolymer does not meet the 95% threshold for named polyamides and falls under 'Other' polyamides.
3908.90.00Optical Grade T Polyamide Copolymer Resin
Optical-grade resin pellets from the named bis(4-amino-3-methylcyclohexyl)methane-isophthalic acid-laurolactam copolymer for lens molding. This copolyamide is not a single-monomer polyamide and is classified under 'Other' polyamides in primary forms.
3908.90.00Polyamide-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 'Other' polyamides in primary forms like pellets. This polyamide is not specifically named in subheading 3908.10.
3908.90.00Polyamide-12 Granules
Polyamide-12 resin granules, made from laurolactam with 95% or more single monomer unit, fall under 'Other' polyamides in primary forms. Ideal for 3D printing filament and flexible tubing due to low density, this polyamide is not specifically named in subheading 3908.10.
3908.90.00Polyamide-6I/6T Copolymer Pellets
Semi-aromatic copolyamide 6I/6T pellets where no single monomer predominates at 95% or more, classified under 'Other' polyamides by predominant polyamide monomer per subheading rules. This copolyamide is not a named polyamide and falls under 'Other' polyamides.
3908.90.00Polyamide Elastomer Base Resin
Base resin for polyamide elastomers (e.g., Pebax type) in primary form, falling under 'Other' polyamides before elastomeric processing. This polyamide resin is not specifically named and is classified under 'Other' polyamides in primary forms.
3908.90.00Specialty Copolyamide Pellets for Fuel Lines
Granules of bis(4-amino-3-methylcyclohexyl)methane-isophthalic acid-laurolactam copolymer designed for automotive fuel line extrusion, in primary form. The copolymer composition does not match named polyamide subheadings, so it is classified as 'Other' polyamides.
3908.90.00Transparent Polyamide MXD6-Laurolactam Copolymer Granules
Specialty granules of bis(4-amino-3-methylcyclohexyl)methane-isophthalic acid-laurolactam copolymer for high-barrier film production, in primary form. This copolyamide is not a named polyamide and is classified under 'Other' polyamides in primary forms.
3908.90.00Trogamid T Resin Pellets
Trogamid T is a transparent polyamide copolymer resin made from bis(4-amino-3-methylcyclohexyl)methane, isophthalic acid, and laurolactam, supplied in primary pellet form for injection molding. As a copolymer without a single predominant monomer, it falls under 'Other' polyamides.