Thermoplastic Natural Rubber (TPNR) from Germany
TPNR dynamically vulcanizes natural rubber within thermoplastic matrix, creating processable pellets for injection molding. Primary pellet form. Blends chemically cross-linked qualify as modified natural polymer under 3913.90.1000.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Composition breakdown must show natural rubber phase >50% with documented vulcanization
• Microscopy evidence of co-continuous morphology prevents synthetic polymer misclassification
• Specify pellet size <5mm to confirm primary form vs. finished shapes