Coal Tar Fumaric Acid Derivative from Mexico
Fumaric acid extracted from coal tar light oil fractionation and oxidation, traditional aromatic source for specialty resins. Meets 2917.19.1500 criteria as aromatic-derived acyclic polycarboxylic acid. Historical production method still used in some regions.
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
• Include coal tar PAH analysis to address environmental entry requirements
• Verify naphthalene/benzene precursors in process description
• Certify dioxin/furan levels <1 ppt for unrestricted commerce