Sign in Book a demo

HTS 3816Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801

Product or HTS code

Rate lines3

Code	Description	General	Special	Column 2	Units	Calculate
3816.00.10.00	3816.00.10.00Dolomite ramming mixGeneral Free · Column 2 30% · t	Free		30%	t
3816.00.20	3816.00.20OtherGeneral 3% · Special Free (A, AU, BH, CL, CO,D,E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) · Column 2 30%	3%	Free (A, AU, BH, CL, CO,D,E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)	30%
3816.00.20.10	3816.00.20.10ClayGeneral 3% · Special Free (A, AU, BH, CL, CO,D,E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) · Column 2 30% · kg	3%	Free (A, AU, BH, CL, CO,D,E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)	30%	kg
3816.00.20.50	3816.00.20.50OtherGeneral 3% · Special Free (A, AU, BH, CL, CO,D,E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) · Column 2 30% · kg	3%	Free (A, AU, BH, CL, CO,D,E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)	30%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Canada36.1% of imports	Austria22.25% of imports	Mexico18.68% of imports	Brazil4.52% of imports	Spain3.69% of imports	Germany3.06% of imports	Türkiye2.18% of imports	China1.3% of imports	Slovenia1.19% of imports	United Kingdom1.15% of imports
3816.00.10.00Dolomite ramming mix	10%9903.05.29	10%9903.05.39	10%9903.05.55	37.5%9903.05.019903.05.27	10%9903.05.39	10%9903.05.39	12.5%9903.05.79	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.81
3816.00.20.10Clay	13%9903.05.29	10%9903.05.39	13%9903.05.55	40.5%9903.05.019903.05.27	10%9903.05.39	10%9903.05.39	15.5%9903.05.79	40.5%9903.05.319903.88.03	10%9903.05.39	13%9903.05.81
3816.00.20.50Other	13%9903.05.29	10%9903.05.39	13%9903.05.55	40.5%9903.05.019903.05.27	10%9903.05.39	10%9903.05.39	15.5%9903.05.79	40.5%9903.05.319903.88.03	10%9903.05.39	13%9903.05.81

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).