Rock Wool Insulation Batt from Japan
Rock wool batts are made from spun molten rock fibers, formed into flexible sheets or rolls for thermal and acoustic insulation in buildings. Classified under HTS 6806.10.00 as rock wool in sheets or rolls, excluding finished articles of heading 6811 or 6812.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify product is in bulk, sheets, or rolls; finished panels may classify under 6811
• Provide mineral composition certificates to confirm slag/rock wool content
• Ensure fire resistance ratings match claims to avoid misclassification as articles