Tetraethylene Pentamine (TEPA) from Mexico
Tetraethylene pentamine is an acyclic polyamine with five amine groups, classified under HTS 2921.29.0010 as a chemically defined organic compound of acyclic polyamines. It is a colorless to yellow viscous liquid used primarily in industrial applications.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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 detailed chemical analysis certificates confirming purity and isomer composition to verify classification under Chapter 29 note (a)
• Ensure SDS and REACH compliance documentation for handling hazardous liquid amines during customs clearance
• Avoid misclassification as mixtures by demonstrating it meets the 'separate chemically defined compound' criteria