Tetraethylenepentamine (TEPA) from Mexico
Tetraethylenepentamine is a higher acyclic polyamine (H2N(CH2CH2NH)4H) used in oilfield chemicals and asphalt modification. HTS 2921.29.00 captures it as 'other' acyclic polyamine.
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
• Specify molecular weight distribution; technical grade common; ensure no cyclic impurities affecting classification