Clopyralid from Mexico
Clopyralid is a picolinic acid herbicide selective for broadleaf weeds in turf and cereals. Its pyridine carboxylic acid structure qualifies as aromatic heterocyclic under HTS 2934.99.1500. Known for excellent crop selectivity and residual soil activity.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
• Declare as clopyralid technical (free acid) versus alkanolamine salts
• Include crop rotation restriction data (up to 18 months for sensitive crops)
• Verify packaging integrity to prevent pesticide residue contamination