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HTS 2839Silicates; commercial alkali metal silicates

Product or HTS code

Rate lines4

Code	Description	General	Special	Column 2	Units	Calculate
	Of sodium
2839.11.00.00	2839.11.00.00Sodium metasilicatesGeneral 1.1% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 3% · kg	1.1%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	3%	kg
2839.19.00.00	2839.19.00.00OtherGeneral 1.1% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 3% · kg	1.1%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	3%	kg
2839.90	2839.90Other
2839.90.10.00	2839.90.10.00Of potassiumGeneral 3.1% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.1%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2839.90.50.00	2839.90.50.00OtherGeneral 3.1% · Special Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.1%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	25%	kg

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	Canada26.51% of imports	Brazil25.34% of imports	Mexico9.43% of imports	Belgium6.73% of imports	Japan5.53% of imports	China5.3% of imports	Poland3.79% of imports	Netherlands3.44% of imports	India3.15% of imports	Italy1.96% of imports
2839.11.00.00Sodium metasilicates	11.1%9903.05.29	38.6%9903.05.019903.05.27	11.1%9903.05.55	10%9903.05.39	12.5%9903.05.49	38.6%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	11.1%9903.05.44	10%9903.05.39
2839.19.00.00Other	11.1%9903.05.29	13.6%9903.05.27	11.1%9903.05.55	10%9903.05.39	12.5%9903.05.49	38.6%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	11.1%9903.05.44	10%9903.05.39
2839.90.10.00Of potassium	13.1%9903.05.29	40.6%9903.05.019903.05.27	13.1%9903.05.55	10%9903.05.39	12.5%9903.05.49	40.6%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	13.1%9903.05.44	10%9903.05.39
2839.90.50.00Other	13.1%9903.05.29	40.6%9903.05.019903.05.27	13.1%9903.05.55	10%9903.05.39	12.5%9903.05.49	40.6%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	13.1%9903.05.44	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).