South Korea supplies 51.7% of U.S. imports of Welded Iron or Steel Oil & Gas Drilling Casing and Tubing…, across 15 countries (year to date through September 2026).
HHI 3,265 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
16 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $49.1M | 63.6% | -19.2% | 48.5% |
| 2 | Taiwan | $19.4M | 25.2% | -41.7% | 50.0% |
| 3 | Turkey | $5.5M | 7.1% | -52.6% | 50.0% |
| 4 | India | $1.7M | 2.3% | +2523.1% | 50.0% |
| 5 | Germany | $979K | 1.3% | -73.6% | 50.0% |
| 6 | Italy | $288K | 0.4% | -88.3% | 50.0% |
| 7 | Canada | $119K | 0.2% | -40.1% | 1.8% |
| 8 | United Arab Emirates | $19K | <0.1% | +17.4% | 0.0% |
| 9 | China | $15K | <0.1% | +46.9% | 75.0% |
| 10 | Vietnam | -- | 0.0% | +24.4% | -- |
| 11 | Brunei | -- | 0.0% | -100.0% | -- |
| 12 | Philippines | -- | 0.0% | -88.2% | -- |
| 13 | Dominican Republic | -- | 0.0% | -- | -- |
| 14 | Mexico | -- | 0.0% | -- | -- |
| 15 | Japan | -- | 0.0% | -62.8% | -- |
| 16 | United Kingdom | -- | 0.0% | -95.2% | -- |
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.