Magnesia Carbon Building Bricks from Mexico
High-performance building bricks composed of over 70% magnesia (MgO) with carbon content under 30%, chemically bonded using resin or pitch. These bricks are designed for extreme heat resistance in industrial construction like furnace linings. They fall under HTS 6810.11.00.10 due to their specific magnesia-carbon composition and bonding method.
Duty Rate — Mexico → United States
13.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify chemical composition certificates showing >70% MgO and <30% carbon to confirm classification under 6810.11.00.10
• Provide bonding agent details (resin or pitch) in documentation to avoid misclassification as ceramic products
• Ensure bricks meet building code standards; common pitfall is incorrect declaration of carbon content leading to duty reassessment