Kaolin Clay Refractory Brick from Mexico
Kaolin clay refractory bricks are fired from high-purity kaolin for pottery kilns and glass tanks, providing creep resistance. They form essential constructional linings. HTS 6902.90.50.20 includes these as other refractory bricks.
Duty Rate — Mexico → United States
10%
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
• Test and document water absorption per ASTM C373 to confirm refractory body
• Specify kaolin as essential clay ingredient avoiding stoneware confusion