Netherlands supplies 25.8% of U.S. imports of Heterocyclic Compounds with Oxygen Heteroatom(s) Only, across 40 countries (year to date through September 2026).
HHI 1,598 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
40 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | China | $9.3M | 22.8% | -18.1% | 11.2% |
| 2 | Switzerland | $8.4M | 20.8% | -56.6% | 8.0% |
| 3 | Ireland | $8.3M | 20.4% | -33.7% | 10.0% |
| 4 | India | $4.3M | 10.7% | -13.5% | 13.2% |
| 5 | France | $1.9M | 4.7% | +35.1% | 10.0% |
| 6 | Israel | $1.6M | 3.8% | +106.0% | 12.5% |
| 7 | Germany | $1.4M | 3.5% | +2.2% | 7.5% |
| 8 | United Kingdom | $1.4M | 3.4% | -7.1% | 16.2% |
| 9 | Italy | $963K | 2.4% | -39.2% | 10.0% |
| 10 | Brazil | $765K | 1.9% | -32.2% | 34.6% |
| 11 | Spain | $561K | 1.4% | +165.4% | 7.7% |
| 12 | Singapore | $413K | 1.0% | -8.6% | 0.0% |
| 13 | Japan | $412K | 1.0% | -41.5% | 12.2% |
| 14 | Mexico | $232K | 0.6% | +49.9% | 0.0% |
| 15 | Ukraine | $224K | 0.6% | -11.3% | 4.3% |
| 16 | Netherlands | $214K | 0.5% | -79.5% | 9.6% |
| 17 | Belgium | $176K | 0.4% | -48.1% | 10.0% |
| 18 | Hungary | $30K | 0.1% | +53.1% | 10.0% |
| 19 | Canada | $23K | 0.1% | +275.7% | 3.4% |
| 20 | South Korea | $18K | <0.1% | +129.2% | 12.5% |
| 21 | Hong Kong | $6K | <0.1% | -78.7% | 3.7% |
| 22 | Lithuania | -- | 0.0% | -54.4% | -- |
| 23 | Latvia | -- | 0.0% | +46.3% | -- |
| 24 | Romania | -- | 0.0% | -- | -- |
| 25 | Turkey | -- | 0.0% | -- | -- |
| 26 | Slovakia | hidden | hidden | hidden | hidden |
| 27 | Czech Republic | hidden | hidden | hidden | hidden |
| 28 | Thailand | hidden | hidden | hidden | hidden |
| 29 | Vietnam | hidden | hidden | hidden | hidden |
| 30 | Laos | hidden | hidden | hidden | hidden |
| 31 | Malaysia | hidden | hidden | hidden | hidden |
| 32 | Finland | hidden | hidden | hidden | hidden |
| 33 | Argentina | hidden | hidden | hidden | hidden |
| 34 | Taiwan | hidden | hidden | hidden | hidden |
| 35 | Colombia | hidden | hidden | hidden | hidden |
| 36 | Australia | hidden | hidden | hidden | hidden |
| 37 | New Zealand | hidden | hidden | hidden | hidden |
| 38 | Russia | hidden | hidden | hidden | hidden |
| 39 | South Africa | hidden | hidden | hidden | hidden |
| 40 | Poland | 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.