Magnesium Oxide for Electrical Insulation from China
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 — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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