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3912.31.00.90/Carboxymethylcellulose Sodium USP Grade/Mexico

Carboxymethylcellulose Sodium USP Grade from Mexico

USP-grade sodium carboxymethylcellulose is a pharmaceutical excipient for tablet binding and suspension stabilization. Classified in HTS 3912.31.00.90 as other carboxymethylcellulose salts in primary forms, meeting subheading note purity criteria. Imported as powder for direct use in drug manufacturing.

Duty Rate — Mexico → United States

16.4%

Rate breakdown

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

• Provide USP/EP certificates proving compliance with pharmacopeia standards for duty-free eligibility under certain programs

• Label as 'not for retail' to prevent misclassification into consumer packaging under 3923/3924

Carboxymethylcellulose Sodium USP Grade from Mexico — Import Duty Rate | HTS 3912.31.00.90