</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Tris(2,3-dibromopropyl) Phosphate (TRIS) from Canada

TRIS is a halogenated phosphoric ester used primarily as a flame retardant additive in polyurethane foams and plastics. It falls under HTS 2919.10.00.00 as it is specifically named tris(2,3-dibromopropyl phosphate), a brominated derivative of phosphoric acid esters. This chemical compound provides fire resistance without significantly altering material properties.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Verify chemical purity and provide Certificate of Analysis (CoA) confirming identity as tris(2,3-dibromopropyl phosphate) to match exact HTS specification

Include Safety Data Sheets (SDS) detailing brominated flame retardant properties and TSCA compliance for US EPA registration

Avoid misclassification as generic phosphate esters; precise chemical name matching is required for this specific subheading