Diphenyl Methylphosphonate from Canada
Aromatic phosphonate ester with methyl substitution, used in extractive metallurgy and as flame retardant. Falls under HTS 2920.90.2000 as 'other' aromatic ester of phosphonic acid. Chemically defined per chapter note (a).
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Metal extraction applications may require additional Bureau of Industry documentation
• Ensure 99%+ purity certification for chemical classification validity
• Avoid bulk packaging over 450L that might trigger Chapter 38 mixture classification