Cuprammonium Rayon Filament Tow from Canada
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 — Canada → United States
17.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document cuprammonium process to differentiate from viscose; ensure no metal residue claims
• Avoid confusion with silk (natural) under Chapter 50