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HTS 2815Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium

Product or HTS code

Rate lines5

Code	Description	General	Special	Column 2	Units	Calculate
	Sodium hydroxide (Caustic soda)
2815.11.00.00	2815.11.00.00SolidGeneral Free · Column 2 1.1¢/kg · kg	Free		1.1¢/kg	kg
2815.12.00.00	2815.12.00.00In aqueous solution (Soda lye or liquid soda)General Free · Column 2 1.1¢/kg · kg, NaOH kg	Free		1.1¢/kg	kg, NaOH kg
2815.20.00	2815.20.00Potassium hydroxide (Caustic potash)General Free · Column 2 2.2¢/kg	Free		2.2¢/kg
2815.20.00.50	2815.20.00.50In solid formGeneral Free · Column 2 2.2¢/kg · kg	Free		2.2¢/kg	kg
2815.20.00.90	2815.20.00.90OtherGeneral Free · Column 2 2.2¢/kg · kg	Free		2.2¢/kg	kg
2815.30.00.00	2815.30.00.00Peroxides of sodium or potassiumGeneral 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	Taiwan22.91% of imports	Japan19.18% of imports	Canada12.66% of imports	South Korea12.59% of imports	Belgium9.65% of imports	Qatar3.92% of imports	Norway3.32% of imports	Jordan2.79% of imports	Sweden2.24% of imports	Thailand2.11% of imports
2815.11.00.00Solid	10%9903.05.76	12.5%9903.05.49	10%9903.05.29	12.5%9903.05.71	10%9903.05.39	12.5%9903.05.65	12.5%9903.05.60	10%9903.05.50	10%9903.05.39	12.5%9903.05.77
2815.12.00.00In aqueous solution (Soda lye or liquid soda)	10%9903.05.76	12.5%9903.05.49	10%9903.05.29	12.5%9903.05.71	10%9903.05.39	12.5%9903.05.65	12.5%9903.05.60	10%9903.05.50	10%9903.05.39	12.5%9903.05.77
2815.20.00.50In solid form	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
2815.20.00.90Other	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
2815.30.00.00Peroxides of sodium or potassium	10%9903.05.76	12.5%9903.05.49	13.7%9903.05.29	12.5%9903.05.71	10%9903.05.39	16.2%9903.05.65	16.2%9903.05.60	13.7%9903.05.50	10%9903.05.39	16.2%9903.05.77

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).