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Harmonized Tariff Schedule (2025 HTS Revision 4)

Search Key:Ammonium Hydroxide

Heading Duty(general) Duty(china) Article Description Compare Code
9902.04.16 Free (2-Hydroxyethyl)trimethylammonium hydroxide (Choline hydroxide) (CAS No. 123-41-1) (provided for in subheading 2923.10.00) --
2522 Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825: vs-99020416
2815 Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:
Sodium hydroxide (Caustic soda):
vs-2522
2816 Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium: vs-2815
2818 Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: vs-2816
2825.20.00.00 3.7% The duty provided in the applicable subheading + 25% Lithium oxide and hydroxide vs-2818
2826.19.10.00 3.1% The duty provided in the applicable subheading + 25% Of ammonium vs-2825200000
2827.10.00.00 2.9% The duty provided in the applicable subheading + 25% Ammonium chloride vs-2826191000
2833.40.60.20 3.1% The duty provided in the applicable subheading + 25% Of ammonium vs-2827100000
2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate: vs-2833406020
2841.70.10.00 4.3% Of ammonium vs-2836
2904.32.00.00 3.7% The duty provided in the applicable subheading + 25% Ammonium perfluorooctane sulfonate vs-2841701000
2923 Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined: vs-2904320000
2933.39.08.00 Free 1-(3-Sulfo propyl) pyridinium hydroxide;N,N'-Bis (2,2,6,6-tetra methyl-4-piperidinyl)-1,6- hexane diamine; 3,5-Dimethyl-2-hydroxy methyl-4-methoxy- pyridine (pyrmethyl alcohol); Dipenta methylene thiuram tetra sulfide; 2H-Indol-2-one,1,3-dihydro-1-phenyl-3-(4- pyridinyl methylene); 4-Picolyl chloride hydro chloride; and Piperidino ethyl chloride hydro chloride vs-2923
3102.10.00.50 Free The duty provided in the applicable subheading + 25% Other
Ammonium sulfate; double salts and mixtures of ammonium sulfate and ammonium nitrate:
vs-2933390800
3105.40.00 Free The duty provided in the applicable subheading + 25% Ammonium dihydrogenorthophosphate (Monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (Diammonium phosphate) vs-3102100050
9902.01.41 Free Ammonium bifluoride (Ammonium fluoride hydrofluoride (1:1:1)) (CAS No. 1341-49-7) (provided for in subheading 2826.19.10) vs-31054000
2815.20.00 Free The duty provided in the applicable subheading + 25% Potassium hydroxide (Caustic potash) vs-99020141
2816.10.00.00 3.1% The duty provided in the applicable subheading + 25% Hydroxide and peroxide of magnesium vs-28152000
2818.30.00.00 Free The duty provided in the applicable subheading + 25% Aluminum hydroxide vs-2816100000