China supplies 17.3% of U.S. imports of Parts for Central Heating Boilers, across 42 countries (year to date through August 2026).
HHI 1,169 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
42 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | South Korea | $2.4M | 21.5% | -6.4% | 12.5% |
| 2 | Canada | $1.6M | 14.4% | -2.6% | 0.7% |
| 3 | Netherlands | $1.5M | 13.6% | +53.8% | 10.0% |
| 4 | France | $1.4M | 12.5% | +31.0% | 10.0% |
| 5 | China | $1.4M | 12.3% | +16.4% | 19.8% |
| 6 | Italy | $880K | 8.0% | -18.8% | 10.0% |
| 7 | Vietnam | $501K | 4.6% | +1243.1% | 12.5% |
| 8 | Germany | $477K | 4.4% | -80.0% | 10.0% |
| 9 | United Kingdom | $303K | 2.8% | -9.5% | 10.0% |
| 10 | Mexico | $139K | 1.3% | +125.8% | 0.0% |
| 11 | Romania | $130K | 1.2% | +26.0% | 10.0% |
| 12 | Taiwan | $101K | 0.9% | -23.0% | 0.8% |
| 13 | Turkey | $51K | 0.5% | -27.2% | 12.5% |
| 14 | Ukraine | $48K | 0.4% | +522.5% | 0.0% |
| 15 | Portugal | $47K | 0.4% | +202.0% | 10.0% |
| 16 | Japan | $34K | 0.3% | -26.7% | 12.5% |
| 17 | Austria | $32K | 0.3% | -66.1% | 10.0% |
| 18 | Tunisia | $31K | 0.3% | -47.6% | 0.0% |
| 19 | India | $21K | 0.2% | +98.9% | 10.0% |
| 20 | Switzerland | $9K | 0.1% | -83.9% | 9.7% |
| 21 | St Kitts and Nevis | $6K | 0.1% | -- | 0.0% |
| 22 | Sweden | $5K | 0.1% | +10.1% | 10.0% |
| 23 | Poland | $5K | 0.1% | -74.7% | 10.0% |
| 24 | Denmark | $4K | <0.1% | -34.4% | 10.0% |
| 25 | Serbia | -- | 0.0% | -76.2% | -- |
| 26 | Brazil | hidden | hidden | hidden | hidden |
| 27 | Norway | hidden | hidden | hidden | hidden |
| 28 | Finland | hidden | hidden | hidden | hidden |
| 29 | Belgium | hidden | hidden | hidden | hidden |
| 30 | Czech Republic | hidden | hidden | hidden | hidden |
| 31 | Slovakia | hidden | hidden | hidden | hidden |
| 32 | Hungary | hidden | hidden | hidden | hidden |
| 33 | Liechtenstein | hidden | hidden | hidden | hidden |
| 34 | Estonia | hidden | hidden | hidden | hidden |
| 35 | Spain | hidden | hidden | hidden | hidden |
| 36 | Slovenia | hidden | hidden | hidden | hidden |
| 37 | Oman | hidden | hidden | hidden | hidden |
| 38 | Thailand | hidden | hidden | hidden | hidden |
| 39 | Malaysia | hidden | hidden | hidden | hidden |
| 40 | Indonesia | hidden | hidden | hidden | hidden |
| 41 | Philippines | hidden | hidden | hidden | hidden |
| 42 | Australia | 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.