Calcined Dolomite Powder for Refractories from China
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 — China → United States
38%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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