Bio-Based Elastomeric Polyurethane Resin from Mexico
Sustainable elastomeric polyurethane resin derived from bio-polyols, in primary form for flexible packaging films. Chemically unmodified with >95% polyurethane content from named monomers, per subheading note (a)(3), classified 3909.50.10.00.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Bio-based claims don't affect tariff classification; prove polymer chemistry identical to petroleum PU
• Certify unmodified status; chemically modified goes to 'Other' per notes
• Avoid greenwashing declarations that could trigger scrutiny