HTS Heading 2833

Sulfates; alums; peroxosulfates (persulfates)

All 21 HTS codes under heading 2833 (sulfates), with their duty rates from the 2026 HTS Revision 23. General duty Free to 5.5%.

Every line of heading 2833

  • 2833 Sulfates; alums; peroxosulfates (persulfates).
  • 2833.11 Disodium sulfate (under: Sodium sulfates).
  • 2833.11.10.00 Salt cake (under: Disodium sulfate) (t): General Free; Special none; Column 2 Free.
  • 2833.11.50 Other (under: Disodium sulfate): General 0.4%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 3.6%.
  • 2833.11.50.10 Anhydrous (under: Other) (t).
  • 2833.11.50.50 Other (under: Other) (t).
  • 2833.19.00.00 Other (under: Sodium sulfates) (kg): General Free; Special none; Column 2 Free.
  • 2833.21.00.00 Of magnesium (under: Other sulfates) (kg): General 3.7%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 20%.
  • 2833.22.00.00 Of aluminum (under: Other sulfates) (kg): General Free; Special none; Column 2 10%.
  • 2833.24.00.00 Of nickel (under: Other sulfates) (kg): General 3.2%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 25%.
  • 2833.25.00.00 Of copper (under: Other sulfates) (kg, Cu kg): General 1.4%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 5%.
  • 2833.27.00.00 Of barium (under: Other sulfates) (kg): General 0.6%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 4.2%.
  • 2833.29 Other (under: Other sulfates).
  • 2833.29.10.00 Of cobalt (under: Other) (kg): General 1.4%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 6.5%.
  • 2833.29.20.00 Of iron (under: Other) (kg): General Free; Special none; Column 2 Free.
  • 2833.29.30.00 Of vanadium (under: Other) (kg, V kg): General 5.5%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 2833.29.40.00 Of chromium (under: Other) (kg): General 3.7%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 25%.
  • 2833.29.45.00 Of zinc (under: Other) (kg): General 1.6%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 8%.
  • 2833.29.51 Other (under: Other): General 3.7%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG); Column 2 30%.
  • 2833.29.51.10 Of manganese (under: Other) (kg).
  • 2833.29.51.90 Other (under: Other) (kg).
  • 2833.30.00.00 Alums (under: Sulfates; alums; peroxosulfates (persulfates)) (kg): General 1.6%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 25%.
  • 2833.40 Peroxosulfates (persulfates) (under: Sulfates; alums; peroxosulfates (persulfates)).
  • 2833.40.20.00 Of sodium (under: Peroxosulfates (persulfates)) (kg): General 3.7%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 25%.
  • 2833.40.60 Other (under: Peroxosulfates (persulfates)): General 3.1%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 25%.
  • 2833.40.60.10 Of potassium (under: Other) (kg).
  • 2833.40.60.20 Of ammonium (under: Other) (kg).
  • 2833.40.60.50 Other (under: Other) (kg).

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.

Last reviewed 2026-11-12.