Stabilized Fumaric Acid with Anti-Caking Agent from Mexico
Fumaric acid with minimal silicon dioxide anti-caking agent for transport stability, used in resin production. Permitted under Chapter 29 note (f) as stabilizer necessary for preservation; classified HTS 2917.19.1700 as other fumaric acid.
Duty Rate — Mexico → United States
14.2%
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
• Document stabilizer <2% by weight to qualify under Chapter 29 note (f)
• Provide formulation breakdown to prevent reclassification as mixture
• Avoid customer-specific additives that could trigger 'particular use' exclusion