HTS Heading 2836

Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate

All 15 HTS codes under heading 2836 (carbonates), with their duty rates from the 2026 HTS Revision 23. General duty Free to 5.5%.

Every line of heading 2836

  • 2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate.
  • 2836.20.00.00 Disodium carbonate (under: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate) (kg): General 1.2%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 8.5%.
  • 2836.30.00.00 Sodium hydrogencarbonate (Sodium bicarbonate) (kg): General Free; Special none; Column 2 Free.
  • 2836.40 Potassium carbonates (under: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate).
  • 2836.40.10.00 Dipotassium carbonate (under: Potassium carbonates) (kg): General 1.9%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 6%.
  • 2836.40.20.00 Potassium hydrogencarbonate (Potassium bicarbonate) (kg): General 1.3%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 4.8%.
  • 2836.50.00.00 Calcium carbonate (under: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate) (kg): General Free; Special none; Column 2 25%.
  • 2836.60.00.00 Barium carbonate (under: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate) (kg): General 2.3%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 8.4%.
  • 2836.91.00 Lithium carbonates (under: Other): 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%.
  • 2836.91.00.10 U.S.P. grade (under: Lithium carbonates) (kg).
  • 2836.91.00.50 Other (under: Lithium carbonates) (kg).
  • 2836.92.00.00 Strontium carbonate (under: Other) (kg): General 4.2%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 25%.
  • 2836.99 Other (under: Other).
  • 2836.99.10.00 Cobalt carbonates (under: Other) (kg): General 4.2%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 30%.
  • 2836.99.20.00 Bismuth carbonate (under: Other) (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 35%.
  • 2836.99.30.00 Commercial ammonium carbonate and other ammonium carbonates (kg): General 1.7%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 16%.
  • 2836.99.40.00 Lead carbonates (under: Other) (kg): General 0.5%; Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 4.5%.
  • 2836.99.50 Other (under: Other): 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%.
  • 2836.99.50.10 Zirconium carbonates (under: Other) (kg).
  • 2836.99.50.50 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.