Triethylenetetramine (TETA) from Mexico
Triethylenetetramine is an acyclic polyamine classified under HTS 2921.29.0020 as a chemically defined organic compound with multiple amine groups. It is primarily used as a curing agent in epoxy resin formulations for coatings, adhesives, and composites.
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 >98% to avoid reclassification as mixtures under Chapter 38
• Ensure SDS and REACH compliance documentation for hazardous material handling during customs clearance
• Declare exact CAS number (112-24-3) and avoid packaging that suggests retail sale to prevent Chapter 38 misclassification