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2904.31.00.00/Ammonium Perfluorooctane Sulfonate/Mexico

Ammonium Perfluorooctane Sulfonate from Mexico

Ammonium salt of perfluorooctane sulfonic acid, classified identically to the acid under HTS 2904.31.00.00 per Chapter 29 salt classification rules. Commonly used in fire-fighting foams and coatings.

Duty Rate — Mexico → United States

13.7%

Rate breakdown

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

• Provide ammonium content analysis to distinguish from free acid form

• Comply with AFFF foam phase-out regulations in many jurisdictions

• Ensure packaging prevents moisture absorption to maintain stability

Ammonium Perfluorooctane Sulfonate from Mexico — Import Duty Rate | HTS 2904.31.00.00