South Korea supplies 20.2% of U.S. imports of Tube & Pipe Fittings of Refined Copper, across 29 countries (year to date through September 2026).
HHI 1,430 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
29 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $4.3M | 19.1% | -25.2% | 50.0% |
| 2 | Germany | $4.1M | 18.5% | -52.1% | 53.0% |
| 3 | Italy | $3.3M | 14.5% | +1.3% | 53.0% |
| 4 | China | $2.6M | 11.5% | +0.6% | 78.0% |
| 5 | Vietnam | $2.4M | 10.7% | -0.5% | 55.7% |
| 6 | Spain | $2.2M | 9.7% | +14.6% | 53.0% |
| 7 | Thailand | $1.1M | 4.8% | +187.7% | 53.0% |
| 8 | Mexico | $617K | 2.8% | -46.9% | 50.1% |
| 9 | Australia | $466K | 2.1% | +56.1% | 50.0% |
| 10 | Poland | $391K | 1.8% | -40.2% | 53.0% |
| 11 | Canada | $261K | 1.2% | -27.3% | 49.5% |
| 12 | France | $230K | 1.0% | +742.7% | 53.0% |
| 13 | Belgium | $188K | 0.8% | -11.9% | 53.0% |
| 14 | Hungary | $159K | 0.7% | +86.3% | 53.1% |
| 15 | Taiwan | $77K | 0.3% | +25.5% | 53.0% |
| 16 | Japan | $45K | 0.2% | -25.2% | 53.0% |
| 17 | Hong Kong | $45K | 0.2% | +23.1% | -- |
| 18 | United Kingdom | $21K | 0.1% | -85.3% | 53.0% |
| 19 | India | $5K | <0.1% | -74.8% | 0.0% |
| 20 | Netherlands | -- | 0.0% | -98.1% | -- |
| 21 | Switzerland | -- | 0.0% | +63.1% | -- |
| 22 | Romania | -- | 0.0% | -- | -- |
| 23 | Bulgaria | -- | 0.0% | -- | -- |
| 24 | Turkey | -- | 0.0% | -62.1% | -- |
| 25 | Czech Republic | -- | 0.0% | -- | -- |
| 26 | Singapore | hidden | hidden | hidden | hidden |
| 27 | Indonesia | hidden | hidden | hidden | hidden |
| 28 | Sweden | hidden | hidden | hidden | hidden |
| 29 | Costa Rica | 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.