Czech Republic supplies 24.6% of U.S. imports of Cyclanic, Cyclenic, and Cycloterpenoid Mono- and Polyamines, across 16 countries (year to date through September 2026).
HHI 1,784 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
16 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Belgium | $2.2M | 42.8% | +92.8% | 10.0% |
| 2 | Czech Republic | $1.0M | 20.8% | -2.3% | 8.7% |
| 3 | Japan | $608K | 12.1% | +22.6% | 12.5% |
| 4 | Germany | $513K | 10.2% | +5.5% | 10.0% |
| 5 | China | $418K | 8.3% | -26.9% | 39.6% |
| 6 | Taiwan | $85K | 1.7% | +85.3% | 10.0% |
| 7 | India | $74K | 1.5% | +30.9% | 15.5% |
| 8 | Ukraine | $41K | 0.8% | +0.5% | 3.7% |
| 9 | United Kingdom | $38K | 0.8% | +53.9% | 16.3% |
| 10 | Canada | $30K | 0.6% | -8.0% | 0.0% |
| 11 | Hungary | $26K | 0.5% | -- | 10.0% |
| 12 | Italy | -- | 0.0% | -- | -- |
| 13 | Turkey | -- | 0.0% | -- | -- |
| 14 | Portugal | -- | 0.0% | -- | -- |
| 15 | Spain | -- | 0.0% | +29.0% | -- |
| 16 | Switzerland | -- | 0.0% | -82.3% | -- |
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.