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Unfaced Mineral Wool Batts R-30 Attic Insulation from Japan

Unfaced R-30 mineral wool batts exceeding 61 cm width for attic insulation, offering superior fire safety over fiberglass. Under HTS 6806.10.00.40 as loose-fill alternative in batt form, heat/sound insulating without chapter exclusions like coated paper (4810/4811). Friction-fit design simplifies installation.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Specify 'unfaced' on invoices; faced variants need separate facing declaration under 4811 if paper

Comply with CARB Phase 2 for low emissions; include VOC test results

Unfaced Mineral Wool Batts R-30 Attic Insulation from Japan — Import Duty Rate | HTS 6806.10.00.40