Triethylenetetramine (TETA) from China
Triethylenetetramine is a polyamine with multiple nitrogen functions including secondary and tertiary amines, classified under HTS 2929.90.50.95 as a compound with 'other nitrogen function' not specified elsewhere in heading 2929. It is used primarily as a curing agent for epoxy resins in industrial applications.
Duty Rate — China → United States
44%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify purity levels and provide chemical analysis certificates to confirm classification under Chapter 29 as a separate chemically defined organic compound
• Include Safety Data Sheets (SDS) and ensure proper hazardous material labeling for transport as it is corrosive
• Avoid misclassification as mixtures; single isomer products stay in 2929 while blends may shift to Chapter 38