Diethylenetriamine (DETA) Impurity-Free TETA from Japan
High-purity triethylenetetramine specifically manufactured to minimize DETA impurities, classified under HTS 2921.29.0020. Critical for high-performance epoxy systems in aerospace composites.
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
• Submit impurity profile showing <0.1% DETA to justify premium pricing and classification
• Include end-use statements for aerospace applications to facilitate drawback claims
• Use nitrogen-blanketed containers to prevent oxidation during ocean transit