Hexamethylenediamine Adipic Acid Monosalt from Japan
Partial neutralization product (1:0.5 molar ratio) of hexamethylenediamine with adipic acid, used in specialty polymer modifiers. Still principally derived from adipic acid per HTS 2921.22.1000 requirements. Intermediate for copolyamide synthesis.
Duty Rate — Japan → United States
12.5%
Rate breakdown
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
• Document neutralization equivalence ratio via acid-base titration to prove classification
• Include stabilization certificates if anticaking agents added per Chapter 29 note (f)