South Korea supplies 57.5% of U.S. imports of Potassium Carbonates, across 17 countries (year to date through September 2026).
HHI 3,662 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
17 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $924K | 60.3% | -13.7% | 12.5% |
| 2 | Taiwan | $150K | 9.8% | -16.0% | 10.0% |
| 3 | Germany | $117K | 7.6% | -48.8% | 10.0% |
| 4 | United Kingdom | $99K | 6.5% | +15.8% | 11.3% |
| 5 | France | $65K | 4.3% | -9.3% | 10.0% |
| 6 | Israel | $43K | 2.8% | -- | 0.0% |
| 7 | Czech Republic | $35K | 2.3% | +39.2% | 10.0% |
| 8 | China | $33K | 2.1% | -7.1% | 38.8% |
| 9 | Japan | $23K | 1.5% | +180.7% | 12.5% |
| 10 | Hong Kong | $21K | 1.4% | -15.5% | 14.2% |
| 11 | India | $17K | 1.1% | -36.3% | 4.5% |
| 12 | Netherlands | $5K | 0.4% | +137.5% | 10.0% |
| 13 | Italy | -- | 0.0% | -43.7% | -- |
| 14 | Russia | -- | 0.0% | -- | -- |
| 15 | Ukraine | -- | 0.0% | +9.1% | -- |
| 16 | Thailand | -- | 0.0% | +37.7% | -- |
| 17 | Spain | -- | 0.0% | -71.0% | -- |
Duty is the duty Census calculated on this month's imports for consumption from each country, as a share of their customs value. It applies the rates in force, additional duties such as Section 301, 232 and IEEPA included and claimed trade-agreement preferences netted out, so it is an observed rate rather than a statutory one. It is an estimate, not duty collected: antidumping and countervailing duties, fees and later refunds are not in it. YoY compares year-to-date value with the same months last year.