Sodium Carboxymethylcellulose (CMC) Powder from Mexico
Sodium carboxymethylcellulose (CMC) is a water-soluble cellulose ether derivative used as a thickener and stabilizer in food and pharmaceuticals. It falls under HTS 3912.31.00.90 as 'Other' carboxymethylcellulose and its salts in primary form, not specifically named elsewhere in the subheading. This powdered form is imported for industrial formulation.
Duty Rate — Mexico → United States
6.4%
Rate breakdown
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 salt form (e.g
• sodium) via certificate of analysis to confirm classification under carboxymethylcellulose salts
• Ensure documentation specifies 'primary form' (not compounded) to avoid reclassification into Chapter 39 finished articles