Stabilized Trimethyl Phosphite from Mexico
Trimethyl phosphite with added stabilizer for safe transport, compliant with chapter note 2(f). Used in polymer additive synthesis under HTS 2920.23.00.00.
Duty Rate — Mexico → United States
13.7%
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 as necessary for preservation (<1%) to qualify under note 2(f)
• Include flash point data (18°C); Class 3 flammable liquid declaration required
• Avoid anti-dusting agents that imply specific use per note 2(g)