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HTS 6806Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69

Product or HTS code

Rate lines9

Code	Description	General	Special	Column 2	Units	Calculate
6806.10.00	6806.10.00Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rollsGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30%	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%
6806.10.00.10	6806.10.00.10Accoustical pads and boardsGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30% · m2	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%	m2
	OtherGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30%	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%
6806.10.00.20	6806.10.00.20Batts, not exceeding 61 cm in widthGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30% · m2	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%	m2
6806.10.00.40	6806.10.00.40Batts, exceeding 61 cm in widthGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30% · m2	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%	m2
6806.10.00.60	6806.10.00.60Pipe coveringsGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30% · m2	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%	m2
6806.10.00.90	6806.10.00.90OtherGeneral 3.9% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30% · m2	3.9%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	30%	m2
6806.20.00.00	6806.20.00.00Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)General Free · Column 2 30% · kg	Free		30%	kg
6806.90.00	6806.90.00OtherGeneral Free · Column 2 30%	Free		30%
6806.90.00.10	6806.90.00.10Accoustical pads and boardsGeneral Free · Column 2 30% · m2	Free		30%	m2
	OtherGeneral Free · Column 2 30%	Free		30%
6806.90.00.20	6806.90.00.20Of molded calcium silicateGeneral Free · Column 2 30% · m2	Free		30%	m2
6806.90.00.90	6806.90.00.90OtherGeneral Free · Column 2 30% · kg	Free		30%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Canada22.21% of imports	Japan17.96% of imports	Mexico13.53% of imports	United Kingdom9.47% of imports	Germany7.62% of imports	Hungary6.83% of imports	China5.4% of imports	Belgium4.26% of imports	Poland3.09% of imports	Netherlands2.07% of imports
6806.10.00.10Accoustical pads and boards	13.9%9903.05.29	12.5%9903.05.49	13.9%9903.05.55	13.9%9903.05.81	10%9903.05.39	10%9903.05.39	41.4%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.10.00.20Batts, not exceeding 61 cm in width	13.9%9903.05.29	12.5%9903.05.49	13.9%9903.05.55	13.9%9903.05.81	10%9903.05.39	10%9903.05.39	41.4%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.10.00.40Batts, exceeding 61 cm in width	13.9%9903.05.29	12.5%9903.05.49	13.9%9903.05.55	13.9%9903.05.81	10%9903.05.39	10%9903.05.39	41.4%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.10.00.60Pipe coverings	13.9%9903.05.29	12.5%9903.05.49	13.9%9903.05.55	13.9%9903.05.81	10%9903.05.39	10%9903.05.39	41.4%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.10.00.90Other	13.9%9903.05.29	12.5%9903.05.49	13.9%9903.05.55	13.9%9903.05.81	10%9903.05.39	10%9903.05.39	41.4%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.20.00.00Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)	10%9903.05.29	12.5%9903.05.49	10%9903.05.55	10%9903.05.81	10%9903.05.39	10%9903.05.39	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.90.00.10Accoustical pads and boards	10%9903.05.29	12.5%9903.05.49	10%9903.05.55	10%9903.05.81	10%9903.05.39	10%9903.05.39	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.90.00.20Of molded calcium silicate	10%9903.05.29	12.5%9903.05.49	10%9903.05.55	10%9903.05.81	10%9903.05.39	10%9903.05.39	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39
6806.90.00.90Other	10%9903.05.29	12.5%9903.05.49	10%9903.05.55	10%9903.05.81	10%9903.05.39	10%9903.05.39	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	10%9903.05.39

Total duty on a $10,000 ocean shipment entered 2026-10-13, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).