Methylarsonic Acid from China
Methylarsonic acid (CH3AsO(OH)2) is a simple organoarsenic compound with direct As-C bond and acid groups. Falls under HTS 2931.90.90.40 as other organo-inorganic compounds not covered by prior specific subheadings. Employed in agriculture as herbicide and cotton desiccant.
Duty Rate — China → United States
41.2%
Rate breakdown
9903.88.0425%Except as provided in headings 9903.88.33, 9903.88.34, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(g) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(g)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• File TSCA premanufacture notice if new use; provide arsenic content analysis for customs verification
• Watch for classification shift if diluted beyond Chapter 29 solvent limits