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HTS 3804Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulfonates, but excluding tall oil of heading 3803

Product or HTS code

Rate lines2

Code	Description	General	Special	Column 2	Units	Calculate
3804.00	3804.00Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulfonates, but excluding tall oil of heading 3803
3804.00.10.00	3804.00.10.00Lignin sulfonic acid and its saltsGeneral Free · Column 2 20% · kg	Free		20%	kg
3804.00.50.00	3804.00.50.00OtherGeneral 3.7% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 25% · kg	3.7%	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	Norway70.72% of imports	Canada12.74% of imports	Mexico7.85% of imports	Germany3.69% of imports	Sweden3.15% of imports	Italy0.67% of imports	Brazil0.28% of imports	Japan0.26% of imports	Netherlands0.18% of imports	China0.12% of imports
3804.00.10.00Lignin sulfonic acid and its salts	12.5%9903.05.60	10%9903.05.29	10%9903.05.55	10%9903.05.39	10%9903.05.39	10%9903.05.39	37.5%9903.05.019903.05.27	12.5%9903.05.49	10%9903.05.39	37.5%9903.05.319903.88.03
3804.00.50.00Other	16.2%9903.05.60	13.7%9903.05.29	13.7%9903.05.55	10%9903.05.39	10%9903.05.39	10%9903.05.39	41.2%9903.05.019903.05.27	12.5%9903.05.49	10%9903.05.39	41.2%9903.05.319903.88.03

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).