Polyethylene Glycol Monoethyl Ether from Mexico
Low molecular weight PEG monoethyl ether used in pharmaceutical formulations. Classified HTS 2909.49.60.00 as ether-alcohol; higher polymers go to Chapter 39. Chemically defined oligomer with n=3-6 ethylene oxide units.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6094.5%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
• Molecular weight distribution (Mw <600) determines Chapter 29 vs 39 classification
• USP/NF monograph compliance required for drug master files
• Ethylene oxide residual (<10 ppm) testing certificate mandatory