Technical Grade CMC Powder for Detergents from Canada
Technical carboxymethylcellulose powder with ≥90% CMC content, used in laundry detergents as anti-redeposition agent. HTS 3912.31.00.10 applies due to predominant monomer unit per chapter note (a)(4). Supplied as free-flowing powder in industrial packaging.
Duty Rate — Canada → United States
16.4%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Certify viscosity grade and purity via COA; segregate from food-grade shipments to avoid cross-contamination claims
• Pitfall: declaring as 'detergent additive' risks shift to 3402