Alumina Glass Powder for Technical Ceramics from Mexico
High-alumina content glass powder for advanced technical ceramics like spark plug insulators. Improves dielectric strength and thermal shock resistance, classified HTS 3207.40.5000 for ceramic industry.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
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
• Provide Al2O3 percentage (>20%) and dielectric specs proving technical ceramic use
• Classify separately from pure alumina ceramics to avoid Chapter 69
• Include end-product examples (insulators, substrates) in import declarations