Technical Grade Methylphosphonic Acid from Mexico
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 — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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