Technical Grade Methylphosphonic Acid from China
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 — China → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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