Magnesium Oxide for Electrical Insulation from Mexico
High-purity magnesia powder pressed into ceramic insulators for heating elements. Classified HTS 2519.90.50.00 as other magnesium oxide before final ceramic forming.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Purity specs (>98% MgO) and dielectric strength data support electrical grade
• Import as powder, not preformed shapes which may be Chapter 85 parts
• Sintering temperature info distinguishes from dead-burned