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3912.39.00.00/Carboxymethyl Cellulose (CMC)/Mexico

Carboxymethyl Cellulose (CMC) from Mexico

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 — Mexico → United States

14.2%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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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

Carboxymethyl Cellulose (CMC) from Mexico — Import Duty Rate | HTS 3912.39.00.00