Songnox 259 Polymer Stabilizer from China
Songnox 259 is 1,6-Hexanediol bis(3,5-dibutyl-4-hydroxyphenyl)propionate supplied as white powder or flakes for stabilizing polypropylene and polyethylene against thermal oxidation. Classified under HTS 2918.29.06.00 due to its carboxylic acid with phenol function structure, fitting Chapter 29's scope for chemically defined organic compounds with oxygen functions.
Duty Rate — China → United States
43.3%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Label shipments with exact CAS number (123-66-0 equivalent structure) and batch purity to match the specific HTS subheading
• Avoid common pitfall of declaring as 'antioxidant mixture' which shifts to 3824; specify as pure compound
• Comply with REACH/TSCA registration proofs for polymer additives entering US markets