China supplies 26.0% of U.S. imports of Heterocyclic Compounds with Oxygen Heteroatoms, across 46 countries (year to date through August 2026).
HHI 1,424 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
48 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Netherlands | $150.1M | 64.8% | -- | <0.1% |
| 2 | China | $21.7M | 9.4% | -- | 16.2% |
| 3 | Ireland | $20.6M | 8.9% | -- | 10.0% |
| 4 | India | $10.1M | 4.4% | -- | 8.0% |
| 5 | Switzerland | $7.1M | 3.1% | -- | 7.1% |
| 6 | France | $3.3M | 1.4% | -- | 6.0% |
| 7 | Canada | $2.8M | 1.2% | -- | 0.1% |
| 8 | Italy | $2.5M | 1.1% | -- | 3.0% |
| 9 | United Kingdom | $2.3M | 1.0% | -- | 16.2% |
| 10 | Dominican Republic | $1.9M | 0.8% | -- | 12.5% |
| 11 | Japan | $1.8M | 0.8% | -- | 10.7% |
| 12 | Spain | $1.5M | 0.6% | -- | 5.6% |
| 13 | Israel | $1.4M | 0.6% | -- | 14.0% |
| 14 | Germany | $1.4M | 0.6% | -- | 8.8% |
| 15 | Taiwan | $454K | 0.2% | -- | 4.9% |
| 16 | Romania | $452K | 0.2% | -- | 7.7% |
| 17 | Mexico | $423K | 0.2% | -- | 0.8% |
| 18 | Thailand | $352K | 0.2% | -- | 16.2% |
| 19 | South Korea | $302K | 0.1% | -- | 12.5% |
| 20 | Austria | $265K | 0.1% | -- | 10.0% |
| 21 | Belgium | $198K | 0.1% | -- | 10.0% |
| 22 | Malaysia | $189K | 0.1% | -- | 8.1% |
| 23 | Brazil | $174K | 0.1% | -- | 41.5% |
| 24 | New Zealand | $154K | 0.1% | -- | 3.7% |
| 25 | Ukraine | $147K | 0.1% | -- | 4.3% |
| 26 | South Africa | hidden | hidden | hidden | hidden |
| 27 | Finland | hidden | hidden | hidden | hidden |
| 28 | Australia | hidden | hidden | hidden | hidden |
| 29 | Slovakia | hidden | hidden | hidden | hidden |
| 30 | Laos | hidden | hidden | hidden | hidden |
| 31 | Hong Kong | hidden | hidden | hidden | hidden |
| 32 | Latvia | hidden | hidden | hidden | hidden |
| 33 | Hungary | hidden | hidden | hidden | hidden |
| 34 | Vietnam | hidden | hidden | hidden | hidden |
| 35 | Czech Republic | hidden | hidden | hidden | hidden |
| 36 | Singapore | hidden | hidden | hidden | hidden |
| 37 | Indonesia | hidden | hidden | hidden | hidden |
| 38 | Macau | hidden | hidden | hidden | hidden |
| 39 | Denmark | hidden | hidden | hidden | hidden |
| 40 | Argentina | hidden | hidden | hidden | hidden |
| 41 | Venezuela | hidden | hidden | hidden | hidden |
| 42 | Colombia | hidden | hidden | hidden | hidden |
| 43 | Russia | hidden | hidden | hidden | hidden |
| 44 | El Salvador | hidden | hidden | hidden | hidden |
| 45 | Poland | hidden | hidden | hidden | hidden |
| 46 | Greece | hidden | hidden | hidden | hidden |
| 47 | Lithuania | hidden | hidden | hidden | hidden |
| 48 | Turkey | 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.