South Korea supplies 63.4% of U.S. imports of Welded Iron or Steel Line Pipe for Oil or Gas Pipelines…, across 26 countries (year to date through September 2026).
HHI 4,169 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
26 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $19.7M | 50.6% | -27.5% | 50.0% |
| 2 | United Kingdom | $4.7M | 12.0% | -3.5% | 25.0% |
| 3 | Taiwan | $4.3M | 11.0% | +104.7% | 50.0% |
| 4 | Greece | $3.7M | 9.4% | -- | 50.0% |
| 5 | Mexico | $2.4M | 6.1% | -28.6% | 44.2% |
| 6 | Turkey | $1.7M | 4.3% | -73.6% | 50.0% |
| 7 | Canada | $1.1M | 2.9% | +28.2% | 48.6% |
| 8 | Germany | $866K | 2.2% | -32.5% | -- |
| 9 | India | $246K | 0.6% | +223.9% | 50.0% |
| 10 | Brazil | $115K | 0.3% | -90.7% | 50.0% |
| 11 | Thailand | $101K | 0.3% | -63.7% | 50.0% |
| 12 | Spain | $46K | 0.1% | +516.7% | 50.0% |
| 13 | Indonesia | $28K | 0.1% | -18.4% | 50.0% |
| 14 | Vietnam | $23K | 0.1% | -57.5% | 50.0% |
| 15 | Japan | $17K | <0.1% | -97.6% | 50.0% |
| 16 | Austria | $14K | <0.1% | -- | 50.0% |
| 17 | Portugal | $4K | <0.1% | -- | 50.0% |
| 18 | Romania | -- | 0.0% | +59.3% | -- |
| 19 | Pakistan | -- | 0.0% | -- | -- |
| 20 | Bosnia and Herzegovina | -- | 0.0% | -- | -- |
| 21 | Italy | -- | 0.0% | -78.1% | -- |
| 22 | China | -- | 0.0% | -48.0% | -- |
| 23 | Poland | -- | 0.0% | -53.2% | -- |
| 24 | United Arab Emirates | -- | 0.0% | +182.5% | -- |
| 25 | Netherlands | -- | 0.0% | -- | -- |
| 26 | Oman | hidden | hidden | hidden | hidden |
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.