Cellulose Acetate Butyrate from Mexico
Cellulose acetate butyrate combines acetate and butyrate esters on cellulose, used in specialty plastics and coatings. While typically Chapter 39, high-purity monomeric analogs classify under HTS 2940.00.60.00 as chemically pure sugar esters. Provides mixed ester functionality for thermoplastic applications.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.2%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify degree of polymerization <50 for monomeric classification; Provide infrared spectra showing ester carbonyls; Avoid Chapter 39 plastics confusion with monomer paperwork