Polyphthalamide (PPA) Powder
Polyphthalamide (PPA) powder is a semi-aromatic polyamide in primary form, offering high heat resistance for automotive components and electrical connectors. It is classified under 3908.90.00 as 'Other' polyamides because PPA is not specifically named in the subheadings of heading 39.08. The powder form qualifies as a primary form under Chapter 39's legal notes.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the PPA is actually a polyamide-6,6 copolymer with that monomer predominating
Copolymers are classified by the predominant monomer unit, which could fall under the specific subheading.
If the material is a polyester rather than a polyamide
Misidentification of the polymer family would place it under heading 39.07 for polyesters.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the PPA powder's chemical composition and provide a certificate of analysis to CBSA, as semi-aromatic polyamides may be scrutinized for correct classification
• Check if the powder contains additives exceeding 1% by weight, which could affect the tariff item within 3908.90.00
• Verify whether the powder is considered a moulding composition, as that may influence the applicable duty rate
Related Products under Tariff item 3908.90.00
Bio-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.
Engineering 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.
Grilamid 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.
High-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.
High-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.
Laurolactam-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.