Harmonized Tariff Schedule of the U.S. › Chapter 28 Inorganic chemicals; compounds of precious metals, rare-earth metals, radioactive elements or isotopes
2836.40.20.00Tariff line
Classification path
Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate
2836
Potassium carbonates
Potassium hydrogencarbonate (Potassium bicarbonate)
2836.40.20.00
Rates of duty
General rate (Column 1)1.3%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 24.8%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1410
Measure flags
for origin CN, entry date 2026-10-25 · base rate 1.3%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2836.40.20 is on L3
- PGAFDA FD3EPA EP7
Confirmed total 38.8% · max 38.8%Full duty breakdown →