Phenyl Phosphonic Acid Diethyl Ester from Mexico
Mixed aromatic-aliphatic phosphonate ester used in flame retardants and agrochemical intermediates. Classified under HTS 2920.90.2000 as aromatic ester of phosphonic acid with principal phenyl recognition. Meets chapter note requirements for acid-function esters.
Duty Rate — Mexico → United States
16.5%
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
• Declare both aromatic and aliphatic ester components for proper statistical reporting
• Agrochem importers require EPA registration and pesticide import permits