Triphenyl Phosphate (TPP) from Canada
Triphenyl phosphate is an aromatic phosphoric ester used primarily as a flame retardant in plastics and resins. It falls under HTS 2919.90.30.00 as an aromatic phosphoric ester (other than those specifically named) that is a chemically defined organic compound per Chapter 29 note (a).
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify purity certificate to confirm it's a separate chemically defined compound, not a mixture exceeding Chapter 29 scope
• Include Safety Data Sheets (SDS) documenting flame retardant use to avoid reclassification as plastic additive (Chapter 38)
• Check for halogenated impurities; if present in significant amounts, may shift to different subheading