</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Carboxymethyl Cellulose (CMC) from Germany

Carboxymethyl cellulose is a cellulose ether derivative produced by reacting cellulose with sodium hydroxide and chloroacetic acid, used as a thickener in food and pharmaceuticals. It falls under HTS 3912.39.00.00 as a cellulose ether not elsewhere specified, meeting the criteria for primary form polymers where the cellulose ether structure predominates.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%

Import Tips

Verify purity and degree of substitution to confirm classification as primary form; provide certificates of analysis for monomer content compliance; avoid misclassification with cellulose esters under 3912.11