Fast Black Base N from China
Fast Black Base N is a specialized aromatic monoamine serving as the diazo component for deep black azo dyes with superior wash fastness. It is classified under HTS 2921.49.32.00 as a fast color base, being a pure amine-function compound excluded from Chapter 32 dye headings. Used extensively in denim and leather dyeing.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Maintain batch certificates showing consistency with published fast color base specifications
• Comply with EPA TSCA inventory listing and Section 8 reporting for new chemical substances
• Avoid bulk packaging that might trigger 'preparation' classification under heading 3824