Arsenic Acid Methyl Ester from Mexico
Monomethyl arsenate serves as herbicide intermediate and wood preservative component. HTS 2920.90.51.00 includes esters of arsenic inorganic acids (nonmetal). Highly regulated due to toxicity.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%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
• FIFRA registration and EPA import alerts mandatory for arsenic compounds
• Arsenic speciation analysis required to confirm ester form