Ireland supplies 29.9% of U.S. imports of Nitrogen Heteroatom Heterocyclic Compounds (Other), across 41 countries (year to date through September 2026).
HHI 1,698 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
41 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Ireland | $38.3M | 40.9% | +27.5% | 0.0% |
| 2 | India | $17.9M | 19.2% | +64.2% | 12.3% |
| 3 | China | $17.1M | 18.3% | -20.3% | 13.4% |
| 4 | Italy | $5.2M | 5.6% | -11.4% | 0.4% |
| 5 | Japan | $4.1M | 4.3% | -3.7% | 8.8% |
| 6 | Germany | $2.2M | 2.4% | +16.9% | 7.5% |
| 7 | Brazil | $1.9M | 2.0% | -46.1% | 44.0% |
| 8 | Ukraine | $1.1M | 1.1% | -9.4% | 6.5% |
| 9 | Canada | $811K | 0.9% | +51.4% | 0.3% |
| 10 | Hungary | $735K | 0.8% | +217.6% | 0.3% |
| 11 | Switzerland | $704K | 0.8% | +29.5% | 9.4% |
| 12 | United Kingdom | $667K | 0.7% | +12.6% | 10.9% |
| 13 | France | $489K | 0.5% | +73.2% | 9.3% |
| 14 | Taiwan | $488K | 0.5% | +19.2% | 9.9% |
| 15 | Mexico | $439K | 0.5% | -50.1% | 0.0% |
| 16 | Vietnam | $382K | 0.4% | +1137.6% | 19.0% |
| 17 | Greece | $320K | 0.3% | -53.5% | 10.0% |
| 18 | Poland | $316K | 0.3% | +70.3% | 0.0% |
| 19 | Spain | $290K | 0.3% | +267.4% | 9.4% |
| 20 | South Korea | $86K | 0.1% | +95.9% | 12.0% |
| 21 | Slovakia | $16K | <0.1% | -34.0% | 0.0% |
| 22 | Israel | $13K | <0.1% | +2652.9% | 19.0% |
| 23 | Netherlands | $11K | <0.1% | -0.1% | 10.0% |
| 24 | Australia | $11K | <0.1% | +2.5% | 19.0% |
| 25 | Belgium | $9K | <0.1% | +503.0% | 10.0% |
| 26 | Sweden | hidden | hidden | hidden | hidden |
| 27 | Hong Kong | hidden | hidden | hidden | hidden |
| 28 | Denmark | hidden | hidden | hidden | hidden |
| 29 | New Zealand | hidden | hidden | hidden | hidden |
| 30 | Sierra Leone | hidden | hidden | hidden | hidden |
| 31 | Madagascar | hidden | hidden | hidden | hidden |
| 32 | Latvia | hidden | hidden | hidden | hidden |
| 33 | South Africa | hidden | hidden | hidden | hidden |
| 34 | Vatican City | hidden | hidden | hidden | hidden |
| 35 | Czech Republic | hidden | hidden | hidden | hidden |
| 36 | Croatia | hidden | hidden | hidden | hidden |
| 37 | Austria | hidden | hidden | hidden | hidden |
| 38 | Thailand | hidden | hidden | hidden | hidden |
| 39 | Singapore | hidden | hidden | hidden | hidden |
| 40 | Indonesia | hidden | hidden | hidden | hidden |
| 41 | Finland | 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.