Epoxidized Natural Rubber (ENR) from Japan
ENR results from partial epoxidation of natural rubber's double bonds, improving oil resistance for tire compounds and adhesives. Available in latex or solid bale primary forms. Chemical modification places it definitively under HTS 3913.90.1000.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide FTIR spectra or titration data showing epoxide content to validate chemical derivation
• Specify if latex (aqueous dispersion) or dry form, as both qualify if primary and unmodified further
• Avoid pitfall of 4002 classification if epoxidation <20% and marketed as synthetic-like