South Korea supplies 89.5% of U.S. imports of Frozen Oysters, across 5 countries (year to date through August 2026).
HHI 8,090 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
5 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $691K | 83.7% | -39.9% | 12.5% |
| 2 | Mexico | $129K | 15.6% | +102.3% | 0.0% |
| 3 | China | $6K | 0.8% | -90.6% | 37.5% |
| 4 | Japan | -- | 0.0% | -76.8% | -- |
| 5 | New Zealand | -- | 0.0% | +201.6% | -- |
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.