Shikimic Acid from Mexico
Shikimic acid, precursor for Tamiflu synthesis, contains the hydroxy-carboxylic structure of 2918.19.90.00. Extracted from star anise or fermented.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Pharma-grade requires >98% purity certification
• Chinese star anise origin requires Section 301 tariff verification
• Fermentation vs extraction method affects documentation