South Korea supplies 50.8% of U.S. imports of Large-Diameter Longitudinally Welded Pipes & Tubes, across 13 countries (year to date through September 2026).
HHI 3,047 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
13 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $6.3M | 82.0% | +107.4% | 50.0% |
| 2 | Japan | $482K | 6.3% | +90.6% | 50.0% |
| 3 | India | $370K | 4.8% | +186.1% | 0.0% |
| 4 | Taiwan | $228K | 3.0% | -63.7% | 39.1% |
| 5 | Canada | $140K | 1.8% | +797.1% | 50.0% |
| 6 | United Arab Emirates | $84K | 1.1% | -66.2% | 0.0% |
| 7 | Germany | $44K | 0.6% | -86.5% | 50.0% |
| 8 | China | $30K | 0.4% | -77.7% | 75.0% |
| 9 | Mexico | -- | 0.0% | -72.0% | -- |
| 10 | Vietnam | -- | 0.0% | -- | -- |
| 11 | Malaysia | -- | 0.0% | +320.8% | -- |
| 12 | United Kingdom | -- | 0.0% | -96.2% | -- |
| 13 | Netherlands | -- | 0.0% | -23.8% | -- |
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.