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Basalt Rock Wool Bulk Insulation from Japan

Bulk bags of basalt-derived rock wool fibers for on-site fabrication into insulation. Classified in HTS 6806.10.00.90 as rock wool in bulk form for heat/sound insulation, per Chapter 68 notes excluding coated or Chapter 69 items.

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

Provide origin certificates for basalt source to confirm natural mineral status

Label clearly as 'bulk' to prevent confusion with finished articles

Basalt Rock Wool Bulk Insulation from Japan — Import Duty Rate | HTS 6806.10.00.90