Magnesia-Chrome Refractory Concrete from Mexico
A ready-mix concrete using magnesia, chrome ore, and phosphate binders for erosion-resistant linings in non-ferrous metal smelters. Under HTS 3816.00.20 as other refractory concretes, it offers superior slag resistance at 1600-1800°C. Common in copper and nickel production.
Duty Rate — Mexico → United States
13%
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
• Include EPA compliance docs for chrome content; declare hexavalent chromium levels accurately
• Ship in moisture-proof containers to prevent premature setting; specify shelf life on labels