Metallocene Ethylene-Hexene Copolymer Pellets
Metallocene-catalyzed elastomer with ethylene and 1-hexene, ethylene >95%, classified elastomeric in primary pellet form under HTS 3901.90.10. Ideal for medical tubing extrusion. Chemically unmodified per subheading note (a)(3).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically modified
Note (a)(3) places modified polymers in 'Other' unless specific.
If for unsaturated hexene-based polymers
Different monomer series in 3907 if not ethylene-predominant.
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
• Include metallocene process disclosure but note it doesn't affect classification
• Validate FDA compliance docs for medical-grade imports
• Pitfall: pellets mistaken for finished resin products
Related Products under HTS 3901.90.10.00
Ethylene Propylene Diene Monomer (EPDM) Rubber
EPDM is an elastomeric copolymer of ethylene, propylene, and a diene, with ethylene and propylene monomers contributing over 95% by weight, classified under 3901.90.10 as an elastomeric polymer of ethylene in primary form. It is supplied as pellets or granules for use in manufacturing weather-resistant seals and gaskets. This classification follows subheading note (a)(2) for named copolymers.
Ethylene-Vinyl Acetate (EVA) Elastomer Pellets
EVA elastomer is a copolymer where ethylene units predominate over vinyl acetate, exceeding 95% ethylene content by weight, making it an elastomeric polymer under HTS 3901.90.10. It is imported in primary pellet form for flexible foam production in footwear. Subheading rules classify it here due to predominant ethylene monomer.
Ethylene-Octene Copolymer Elastomer Granules
This elastomer, often branded as Engage by Dow, features ethylene with octene comonomers where ethylene exceeds 95% by weight, classifying as elastomeric under 3901.90.10. Supplied as granules for injection molding in automotive parts. Meets primary form criteria in Chapter 39.
High Molecular Weight Ethylene-Butene Elastomer
An elastomeric copolymer with ethylene and 1-butene monomers, ethylene at >95% by weight, imported in primary powder or pellet form under 3901.90.10. Used in wire insulation compounding. Elastomeric designation per Chapter 39 notes distinguishes it from standard polyethylenes.
ExxonMobil Vistamaxx Ethylene-Propylene Elastomer
Vistamaxx is a branded semi-crystalline ethylene-propylene copolymer elastomer, ethylene predominant at >95%, in primary forms for BOPP film modification under 3901.90.10. Meets copolymer rules without diene for EPDM distinction.