AH Salt for Nylon Production from China
AH Salt (Adipic acid-Hexamethylenediamine salt) is the technical name for hexamethylenediamine adipate under HTS 2921.22.0500, serving as the monomer salt for high-performance Nylon 6,6 resins. This pure chemical intermediate enables direct salt melt polymerization without water removal steps. Used by major nylon producers worldwide.
Duty Rate — China → United States
41.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Provide CAS number 3323-53-3 documentation and NMR spectrum if requested by customs; ensure packaging prevents moisture absorption (use nitrogen-purged bags); declare correct UN number for diamine compounds