Sodium Carboxymethyl Cellulose (CMC) from China
Sodium carboxymethyl cellulose is a water-soluble derivative of cellulose, a natural polysaccharide, produced through chemical modification with sodium hydroxide and monochloroacetic acid. It falls under HTS 3913.90.20 as a polysaccharide derivative in primary form, used as a thickener in food, pharmaceuticals, and detergents.
Duty Rate — China → United States
30.8%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify purity and degree of substitution via certificate of analysis to confirm classification as a primary form polysaccharide derivative
• Ensure documentation specifies 'in primary forms' (e.g
• powder, not formulated products) to avoid reclassification