Chlorinated Neoprene Rubber (CR) from Mexico
Chlorinated synthetic rubber derived from polychloroprene (neoprene) through chlorination, meeting the 95%+ monomer content requirement per subheading notes. Used primarily in adhesives, sealants, and corrosion-resistant coatings due to its oil and chemical resistance. Classified under 3911.90.70.00 as chlorinated synthetic rubber in primary form.
Duty Rate — Mexico → 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
• Verify chlorination level and monomer composition via lab analysis to confirm 95%+ predominant unit per Chapter 39 notes
• Provide supplier certificates showing it's in primary form (not compounded or vulcanized) to avoid reclassification