South Korea supplies 51.5% of U.S. imports of Styrene-Acrylonitrile (SAN) Copolymers in Primary Forms, across 15 countries (year to date through August 2026).
HHI 3,288 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
15 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $5.7M | 63.0% | +104.9% | 12.5% |
| 2 | Mexico | $1.3M | 14.1% | -17.7% | 0.0% |
| 3 | Japan | $983K | 11.0% | +55.5% | 12.9% |
| 4 | Taiwan | $586K | 6.5% | +77.3% | 10.0% |
| 5 | Germany | $342K | 3.8% | +403.5% | 10.0% |
| 6 | China | $77K | 0.9% | -53.5% | 44.0% |
| 7 | Netherlands | $59K | 0.7% | -66.7% | 10.0% |
| 8 | South Africa | $6K | 0.1% | -- | 19.0% |
| 9 | Poland | -- | 0.0% | -- | -- |
| 10 | Sweden | -- | 0.0% | +24.6% | -- |
| 11 | Denmark | -- | 0.0% | -71.4% | -- |
| 12 | France | -- | 0.0% | -- | -- |
| 13 | Canada | -- | 0.0% | -26.9% | -- |
| 14 | India | -- | 0.0% | -69.3% | -- |
| 15 | Malaysia | -- | 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.