Cuprammonium Rayon Filament Tow from Mexico
Cuprammonium rayon tow uses copper-ammonia process for high-quality artificial continuous filaments in untwisted form, for fine textile applications. HTS 5502.90.00.00 covers this as other artificial tow, rare but distinct from standard viscose.
Duty Rate — Mexico → United States
17.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document cuprammonium process to differentiate from viscose; ensure no metal residue claims
• Avoid confusion with silk (natural) under Chapter 50