South Korea supplies 55.3% of U.S. imports of Hot-Rolled Flat Steel, across 14 countries (year to date through September 2026).
HHI 3,915 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
14 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $5.3M | 87.7% | +11.6% | 50.0% |
| 2 | Canada | $540K | 8.9% | -37.9% | 49.5% |
| 3 | Australia | $172K | 2.8% | -86.0% | 50.0% |
| 4 | Mexico | $13K | 0.2% | +12.5% | 50.0% |
| 5 | Poland | $13K | 0.2% | -- | 0.0% |
| 6 | Slovakia | $7K | 0.1% | -37.1% | 50.0% |
| 7 | India | $3K | <0.1% | -65.8% | 50.0% |
| 8 | Malaysia | -- | 0.0% | -40.1% | -- |
| 9 | China | -- | 0.0% | +364.0% | -- |
| 10 | Sweden | -- | 0.0% | -- | -- |
| 11 | Brazil | -- | 0.0% | -24.5% | -- |
| 12 | Germany | -- | 0.0% | -83.8% | -- |
| 13 | Egypt | -- | 0.0% | -- | -- |
| 14 | Belgium | -- | 0.0% | -67.8% | -- |
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.