Canada supplies 44.0% of U.S. imports of Reaction Initiators, Accelerators & Catalytic Preparations, across 45 countries (year to date through August 2026).
HHI 2,349 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
45 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Canada | $71.4M | 40.3% | -- | 0.1% |
| 2 | Germany | $35.8M | 20.2% | -- | 7.4% |
| 3 | Japan | $15.3M | 8.6% | -- | 6.8% |
| 4 | Italy | $10.0M | 5.7% | -- | 10.0% |
| 5 | Poland | $9.4M | 5.3% | -- | 9.0% |
| 6 | Mexico | $6.5M | 3.7% | -- | 0.0% |
| 7 | France | $5.7M | 3.2% | -- | 9.9% |
| 8 | China | $5.6M | 3.2% | -- | 33.4% |
| 9 | Belgium | $3.8M | 2.2% | -- | 10.0% |
| 10 | India | $3.1M | 1.7% | -- | 10.5% |
| 11 | Switzerland | $1.1M | 0.6% | -- | 12.5% |
| 12 | Denmark | $1.1M | 0.6% | -- | 10.0% |
| 13 | United Kingdom | $1.0M | 0.6% | -- | 10.6% |
| 14 | Netherlands | $985K | 0.6% | -- | 7.3% |
| 15 | Kuwait | $985K | 0.6% | -- | 0.0% |
| 16 | Estonia | $967K | 0.6% | -- | 10.0% |
| 17 | Australia | $867K | 0.5% | -- | 12.5% |
| 18 | South Africa | $674K | 0.4% | -- | 12.5% |
| 19 | Philippines | $599K | 0.3% | -- | 12.5% |
| 20 | North Macedonia | $586K | 0.3% | -- | 0.0% |
| 21 | Spain | $349K | 0.2% | -- | 10.0% |
| 22 | Czech Republic | $345K | 0.2% | -- | 10.0% |
| 23 | South Korea | $314K | 0.2% | -- | 12.5% |
| 24 | Austria | $159K | 0.1% | -- | 9.8% |
| 25 | United Arab Emirates | $142K | 0.1% | -- | 12.5% |
| 26 | Singapore | hidden | hidden | hidden | hidden |
| 27 | Finland | hidden | hidden | hidden | hidden |
| 28 | Sweden | hidden | hidden | hidden | hidden |
| 29 | Vietnam | hidden | hidden | hidden | hidden |
| 30 | Slovenia | hidden | hidden | hidden | hidden |
| 31 | Honduras | hidden | hidden | hidden | hidden |
| 32 | Thailand | hidden | hidden | hidden | hidden |
| 33 | Turkey | hidden | hidden | hidden | hidden |
| 34 | Colombia | hidden | hidden | hidden | hidden |
| 35 | Niger | hidden | hidden | hidden | hidden |
| 36 | Lithuania | hidden | hidden | hidden | hidden |
| 37 | Guatemala | hidden | hidden | hidden | hidden |
| 38 | Hungary | hidden | hidden | hidden | hidden |
| 39 | Luxembourg | hidden | hidden | hidden | hidden |
| 40 | Saudi Arabia | hidden | hidden | hidden | hidden |
| 41 | Norway | hidden | hidden | hidden | hidden |
| 42 | Brazil | hidden | hidden | hidden | hidden |
| 43 | Peru | hidden | hidden | hidden | hidden |
| 44 | Hong Kong | hidden | hidden | hidden | hidden |
| 45 | Taiwan | 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.