2-Hydroxyethyl Methacrylate (HEMA) from Mexico
2-Hydroxyethyl methacrylate (HEMA) is a functional monomer with both acrylate ester and hydroxyl groups, used in hydrogels and contact lenses. It falls under HTS 2916.14.20 as an 'other' methacrylic ester per Chapter 29 ester classification rules prioritizing acid-function heading. The compound remains a separate chemically defined organic compound.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Residual ethylene oxide testing (<10 ppm) required for biocompatibility applications
• Hydroxyl value certification confirms functional group integrity
• Biohazard labeling if medical-grade purity; standard industrial grade simpler