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
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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