Rock Wool Insulation Batt from Mexico
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 — Mexico → United States
13.9%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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