Japan supplies 23.5% of U.S. imports of Spark-Ignition Reciprocating & Rotary Internal Combustion…, across 29 countries (year to date through September 2026).
HHI 1,418 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 | Japan | $8.5M | 19.0% | -16.7% | 18.4% |
| 2 | South Korea | $8.1M | 18.1% | -72.4% | 25.0% |
| 3 | Thailand | $7.9M | 17.7% | -37.5% | 26.3% |
| 4 | China | $7.0M | 15.8% | -39.3% | 46.1% |
| 5 | Vietnam | $4.8M | 10.7% | +21.4% | 24.4% |
| 6 | Canada | $4.3M | 9.6% | -42.1% | 23.8% |
| 7 | India | $2.2M | 5.0% | +37.2% | 25.0% |
| 8 | Brazil | $1.4M | 3.1% | +81.5% | 25.0% |
| 9 | United Kingdom | $216K | 0.5% | +19.5% | 22.0% |
| 10 | Indonesia | $95K | 0.2% | -17.9% | 25.0% |
| 11 | Germany | $84K | 0.2% | +192.9% | 17.0% |
| 12 | Taiwan | $12K | <0.1% | -51.2% | 25.0% |
| 13 | Italy | $7K | <0.1% | -92.6% | 25.0% |
| 14 | Bulgaria | $5K | <0.1% | -54.9% | 25.0% |
| 15 | Poland | $5K | <0.1% | -- | 25.0% |
| 16 | Turkey | -- | 0.0% | -- | -- |
| 17 | Switzerland | -- | 0.0% | +5.3% | -- |
| 18 | Pakistan | -- | 0.0% | -- | -- |
| 19 | Czech Republic | -- | 0.0% | -96.0% | -- |
| 20 | Austria | -- | 0.0% | -94.5% | -- |
| 21 | Malaysia | -- | 0.0% | -45.4% | -- |
| 22 | France | -- | 0.0% | -51.3% | -- |
| 23 | Netherlands | -- | 0.0% | +340.7% | -- |
| 24 | Norway | -- | 0.0% | -- | -- |
| 25 | Sweden | -- | 0.0% | -- | -- |
| 26 | Mexico | hidden | hidden | hidden | hidden |
| 27 | Spain | hidden | hidden | hidden | hidden |
| 28 | Australia | hidden | hidden | hidden | hidden |
| 29 | Slovenia | 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.