South Korea supplies 40.3% of U.S. imports of Other Synthetic Filament Yarn, across 12 countries (year to date through September 2026).
HHI 3,115 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
12 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Japan | $503K | 78.9% | +48.7% | 12.5% |
| 2 | South Korea | $97K | 15.2% | +20.7% | 12.5% |
| 3 | China | $20K | 3.1% | -43.9% | 45.5% |
| 4 | Netherlands | $12K | 1.9% | +154.9% | 10.0% |
| 5 | India | $6K | 0.9% | -53.9% | 18.0% |
| 6 | Canada | -- | 0.0% | -- | -- |
| 7 | Indonesia | -- | 0.0% | -- | -- |
| 8 | Turkey | -- | 0.0% | -53.6% | -- |
| 9 | United Kingdom | -- | 0.0% | -50.0% | -- |
| 10 | Germany | -- | 0.0% | -5.1% | -- |
| 11 | Austria | -- | 0.0% | -- | -- |
| 12 | Czech Republic | -- | 0.0% | -- | -- |
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.