Triethylenetetramine (TETA) from Japan
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 — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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