United Kingdom supplies 27.3% of U.S. imports of Vaccines, Toxins, Microbial Cultures & Related Biological…, across 32 countries (year to date through September 2026).
HHI 1,661 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
32 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | United Kingdom | $70.9M | 46.0% | +1962.8% | 0.0% |
| 2 | Ireland | $44.9M | 29.1% | +40.8% | 0.0% |
| 3 | South Korea | $16.4M | 10.6% | +98.3% | 0.0% |
| 4 | Germany | $7.3M | 4.8% | -47.9% | 1.4% |
| 5 | Denmark | $3.3M | 2.2% | -2.6% | <0.1% |
| 6 | Italy | $3.3M | 2.1% | +96.8% | 0.2% |
| 7 | China | $1.8M | 1.2% | +51.4% | 0.0% |
| 8 | Belgium | $1.5M | 1.0% | -77.9% | 0.0% |
| 9 | France | $1.4M | 0.9% | +15.3% | 2.4% |
| 10 | India | $1.3M | 0.9% | +0.7% | 0.0% |
| 11 | Netherlands | $945K | 0.6% | -3.9% | 0.0% |
| 12 | Australia | $322K | 0.2% | +20.4% | 0.0% |
| 13 | Canada | $271K | 0.2% | -8.4% | 0.0% |
| 14 | Japan | $126K | 0.1% | +163.4% | 0.0% |
| 15 | Spain | $90K | 0.1% | +35.5% | 0.0% |
| 16 | Sweden | $53K | <0.1% | -96.7% | 15.0% |
| 17 | Switzerland | $43K | <0.1% | -23.8% | 0.0% |
| 18 | Taiwan | $35K | <0.1% | -13.5% | 0.0% |
| 19 | Estonia | $18K | <0.1% | +82.4% | 0.0% |
| 20 | Finland | $15K | <0.1% | -47.5% | 0.0% |
| 21 | Poland | $13K | <0.1% | -- | 0.0% |
| 22 | Israel | $8K | 0.0% | -26.8% | 0.0% |
| 23 | Austria | $5K | 0.0% | -90.8% | 0.0% |
| 24 | Brazil | -- | 0.0% | +1119.9% | -- |
| 25 | Mexico | -- | 0.0% | -51.1% | -- |
| 26 | New Zealand | hidden | hidden | hidden | hidden |
| 27 | Tunisia | hidden | hidden | hidden | hidden |
| 28 | Slovakia | hidden | hidden | hidden | hidden |
| 29 | Bulgaria | hidden | hidden | hidden | hidden |
| 30 | Singapore | hidden | hidden | hidden | hidden |
| 31 | Argentina | hidden | hidden | hidden | hidden |
| 32 | Uruguay | 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.