HTS heading
2836Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate:
Rates as published in 2026 HTS Revision 15, captured 2026-08-13. Source: USITC Harmonized Tariff Schedule.
Current duty rates (13 lines)
| Code | Description | General | Special | Column 2 |
|---|---|---|---|---|
| 2836.20.00.00 | Disodium carbonate | 1.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 8.5% |
| 2836.30.00.00 | Sodium hydrogencarbonate (Sodium bicarbonate) | Free | — | Free |
| 2836.40.10.00 | Dipotassium carbonate | 1.9% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 6% |
| 2836.40.20.00 | Potassium hydrogencarbonate (Potassium bicarbonate) | 1.3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 4.8% |
| 2836.50.00.00 | Calcium carbonate | Free | — | 25% |
| 2836.60.00.00 | Barium carbonate | 2.3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 8.4% |
| 2836.91.00 | Lithium carbonates | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
| 2836.92.00.00 | Strontium carbonate | 4.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
| 2836.99.10.00 | Cobalt carbonates | 4.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 30% |
| 2836.99.20.00 | Bismuth carbonate | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 35% |
| 2836.99.30.00 | Commercial ammonium carbonate and other ammonium carbonates | 1.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 16% |
| 2836.99.40.00 | Lead carbonates | 0.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 4.5% |
| 2836.99.50 | Other | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
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