Styrene Coproduct Fumaric Acid from Mexico
Fumaric acid isolated from styrene oxidation process side streams, used in food coating applications. Aromatic hydrocarbon styrene derivation qualifies for specific 2917.19.1500 tariff treatment. High purity grade meeting FCC specifications.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide styrene monomer residue analysis (<5 ppm)
• Include FCC monograph compliance certificate for food contact
• Declare optical rotation [α]D = 0° confirming trans configuration