Rock Wool Insulation Batt from Japan
A pre-cut batt made from spun rock wool fibers, bonded with resin, used for thermal and acoustic insulation in walls and attics. It falls under HTS 6806.90.00.90 as a heat-insulating and sound-absorbing article of mineral material, not classified in headings 6811, 6812, or chapter 69.
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 R-value certification and fiber composition to confirm classification under mineral wools, avoiding misclassification as plastic foams
• Include safety data sheets (SDS) for respirable fibers in documentation to meet EPA and OSHA import requirements
• Ensure packaging labels indicate non-combustible properties to prevent reclassification as building materials under Chapter 68