South Korea supplies 48.6% of U.S. imports of Aluminum-Zinc Alloy-Coated Flat Iron or Nonalloy Steel…, across 11 countries (year to date through September 2026).
HHI 3,490 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
11 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $17.0M | 54.1% | +48.6% | 50.0% |
| 2 | Taiwan | $12.6M | 40.1% | -29.3% | 50.0% |
| 3 | Mexico | $575K | 1.8% | -98.5% | 50.0% |
| 4 | Canada | $560K | 1.8% | -89.1% | 50.0% |
| 5 | Colombia | $413K | 1.3% | -22.7% | 0.0% |
| 6 | China | $116K | 0.4% | +89.3% | 75.0% |
| 7 | Indonesia | $99K | 0.3% | -45.8% | 50.0% |
| 8 | Vietnam | $37K | 0.1% | -97.3% | 50.0% |
| 9 | Thailand | $3K | <0.1% | +1350.9% | 50.0% |
| 10 | Japan | -- | 0.0% | -97.8% | -- |
| 11 | New Zealand | -- | 0.0% | +367.3% | -- |
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.