Polybutylene Resin PB-01
Polybutylene resin PB-01 is a high-purity thermoplastic polymer in primary pellet form, consisting of at least 95% butene-1 monomer units by weight. It is used in hot-melt adhesives and pipe manufacturing due to its flexibility, and it falls under tariff item 3902.90.00 as an 'Other' olefin polymer.
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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the polymer is propylene-dominant
Polypropylene is specifically named in heading 3902, so a propylene-dominant polymer would classify there.
If imported as finished pipes
Finished tubes and pipes of plastics fall under heading 3917, not primary forms.
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
• Verify that the butene-1 content is at least 95% by weight to support classification as polybutylene under 3902.90.00
• Ensure the product is in primary form (pellets) and not further worked
• Check the CBSA's duty rate for this tariff item, as it may be subject to trade agreement preferences
Related Products under Tariff item 3902.90.00
1-Hexene Polymer Pellets
1-Hexene Polymer Pellets are a homopolymer of 1-hexene in primary form, with more than 95% hexene units. Used in film applications, this olefin polymer falls under tariff item 3902.90.00 as an 'Other' polymer of olefins, since 1-hexene is not specifically named in heading 3902.
4-Methyl-1-Pentene Copolymer Pellets
4-Methyl-1-Pentene Copolymer Pellets are a copolymer where the named monomer, 4-methyl-1-pentene, predominates by weight. Used in high-temperature films and containers, these pellets fall under tariff item 3902.90.00 as 'Other' olefin polymers, since 4-methyl-1-pentene is not specifically named in heading 3902.
Butene-Propylene Random Copolymer Granules
Butene-Propylene Random Copolymer Granules are a random copolymer where butene predominates by weight over propylene. In primary form, these granules fall under tariff item 3902.90.00 as 'Other' olefin polymers, since butene is not specifically named in heading 3902.
Copolymer Polybutene PB-0300 MFI Pellets
Copolymer polybutene pellets with a melt flow index of 0.3 g/10min, used in film blowing applications. The butene monomer units predominate by weight, classifying it as a polymer of other olefins in primary forms under tariff item 3902.90.00.
Cyclic Olefin Copolymer COC Pellets
Cyclic Olefin Copolymer (COC) Pellets are made from norbornene and ethylene, with norbornene as the predominant monomer. Used in optical media and medical packaging, these pellets fall under tariff item 3902.90.00 as 'Other' olefin polymers, since norbornene is not specifically named in heading 3902.
Duraflex PB8400 Polybutene
Polybutene resin with medium melt flow index, designed for blow molding pipes. This primary form olefin polymer has butene as the predominant monomer, placing it under tariff item 3902.90.00 for other olefin polymers.