Calcined Dolomite Powder for Refractories from Mexico
Finely ground calcined dolomite produced by heating dolomite rock to high temperatures, removing volatiles to create a stable refractory material. Classified under HTS 2518.20.00.00 as calcined dolomite, distinct from mere crushed stone, specifically used in steelmaking furnaces and cement 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
• Verify calcination process documentation to distinguish from unprocessed dolomite under 2518.10
• Include chemical analysis certificates showing high CaO/MgO content typical for refractory grade
• Ensure proper labeling as 'calcined' to prevent reclassification as dolomite ramming mix in 3816