U.S. imports of potassium carbonates (HS 283640) totaled $1.7M in April 2026, traded with 13 countries.
Potassium carbonates — encompassing dipotassium carbonate (potash of commerce) and potassium bicarbonate — serve as alkalis in specialty glass production, cocoa processing, wine stabilization, and pharmaceutical formulations, distinguishing them from the higher-volume sodium carbonate market. The US schedule breaks this heading into three 10-digit lines: a combined line (2836400000), dipotassium carbonate (2836401000), and potassium bicarbonate (2836402000). South Korea leads US supply, followed by Taiwan and the United Kingdom, reflecting the concentration of specialty chemical production in East Asia and Europe. Food and pharmaceutical grades are subject to FDA admissibility review; importers should verify grade specifications and consult a licensed customs broker regarding applicable entry requirements.
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Dipotassium carbonate (K₂CO₃) is classified under 2836401000 and is used as a flux in glass and as an alkali in food processing, while potassium bicarbonate (KHCO₃) falls under 2836402000 and is more commonly used as a leavening agent and wine stabilizer. The two compounds have different chemical properties and regulatory profiles despite sharing the same HS6 heading.
South Korea is the leading supplier, followed by Taiwan and the United Kingdom. Germany and China also rank among the top source countries under this heading.
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Imports
$1.7M
from 13 countries · YTD: $6.5M
Exports
$2.7M
Surplus of $1000K (net exporter)
Trade balance: surplus of $1000K (net exporter)
YTD: $6.5M imported (April 2026)
54 shipments/month
Monthly import values over time
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
ALUMINUM OXIDE, EXCEPT ARTIFICIAL CORUNDUM, NESOI
HS 281820
SULFURIC ACID; OLEUM
HS 280700
Top U.S. entry points for this product, ranked by latest-month import value.