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