Bauxite-Based Refractory Block from Mexico
Bauxite-based refractory blocks are fired from calcined bauxite for electric arc furnace roofs, offering high strength at elevated temperatures. They resist molten metal penetration. Classified under HTS 6902.90.50.20 for other refractory ceramic blocks.
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
• Include bauxite origin certificates and firing logs for authenticity
• Declare exact alumina percentage to rule out higher-specificity codes
• Avoid packaging as sets; individual blocks prevent parts classification