Tris(2,4-di-tert-butylphenyl) Phosphite from Canada
Tris(2,4-di-tert-butylphenyl) phosphite (AO-168) is a hindered phosphite for polyethylene stabilization. Sterically protected phosphite ester under HTS 2920.29.00.00.
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
• CAS 31570-04-4 verification prevents generic phosphite classification
• Dust hazard documentation for fine powder handling
• High purity (>99%) specification maintains chemical compound status