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2920.90.20.00/Triphenyl Phosphite/Mexico

Triphenyl Phosphite from Mexico

Triphenyl phosphite serves as a stabilizer and antioxidant in polymer processing. Technically a phosphite ester (P(OR)3) but classified under HTS 2920.90.2000 as aromatic ester of phosphorous acid per HTS structure. Chemically defined with CAS 101-02-0.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Distinguish from triphenyl phosphate; phosphite stabilizers oxidize to phosphates during use

• Provide polymer processing end-use documentation to support classification

Triphenyl Phosphite from Mexico — Import Duty Rate | HTS 2920.90.20.00