Technical Grade Methylphosphonic Acid from Japan
Technical grade methylphosphonic acid is a white crystalline powder used in industrial chemical processes, precisely matching HTS 2931.44.00.00 for non-halogenated organo-phosphorus derivatives. It functions as a precursor for phosphonate-based water treatment chemicals.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include detailed chemical composition report to distinguish from pesticide intermediates; use DOT-approved corrosive packaging
• Watch for reclassification if diluted beyond Chapter 29 note (d) limits