Japan supplies 32.0% of U.S. imports of Parts & Accessories for Compound Optical Microscopes, across 39 countries (year to date through August 2026).
HHI 1,866 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
39 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Japan | $4.7M | 36.8% | +17.0% | 12.5% |
| 2 | Germany | $3.1M | 24.0% | -15.8% | 9.5% |
| 3 | Italy | $1.4M | 11.2% | +33.5% | 9.9% |
| 4 | United Kingdom | $914K | 7.2% | +7.1% | 9.8% |
| 5 | China | $776K | 6.1% | -0.7% | 37.2% |
| 6 | Canada | $687K | 5.4% | +33.6% | 3.2% |
| 7 | Singapore | $352K | 2.8% | -30.0% | 12.5% |
| 8 | India | $303K | 2.4% | +5.9% | 10.0% |
| 9 | Spain | $150K | 1.2% | +12.6% | 10.0% |
| 10 | Philippines | $134K | 1.1% | +12.5% | 12.5% |
| 11 | Thailand | $51K | 0.4% | -31.9% | 9.7% |
| 12 | Israel | $36K | 0.3% | +29.7% | 12.5% |
| 13 | Taiwan | $26K | 0.2% | -43.0% | 10.0% |
| 14 | Malaysia | $24K | 0.2% | +1.4% | 10.0% |
| 15 | Switzerland | $23K | 0.2% | +72.3% | 12.5% |
| 16 | Finland | $19K | 0.2% | -41.5% | 10.0% |
| 17 | France | $19K | 0.2% | -71.2% | 10.0% |
| 18 | Sweden | $19K | 0.1% | -89.3% | 10.0% |
| 19 | Hungary | $12K | 0.1% | +209.1% | 10.0% |
| 20 | Mexico | $7K | 0.1% | -52.2% | 10.0% |
| 21 | Slovakia | $6K | 0.1% | -29.3% | 10.0% |
| 22 | Austria | $6K | 0.1% | -28.7% | 10.0% |
| 23 | Netherlands | $6K | <0.1% | +31.1% | 10.0% |
| 24 | Denmark | $5K | <0.1% | +70.7% | 10.0% |
| 25 | Romania | $3K | <0.1% | -- | 10.0% |
| 26 | South Africa | hidden | hidden | hidden | hidden |
| 27 | South Korea | hidden | hidden | hidden | hidden |
| 28 | Vietnam | hidden | hidden | hidden | hidden |
| 29 | Slovenia | hidden | hidden | hidden | hidden |
| 30 | Ukraine | hidden | hidden | hidden | hidden |
| 31 | Belarus | hidden | hidden | hidden | hidden |
| 32 | Indonesia | hidden | hidden | hidden | hidden |
| 33 | Poland | hidden | hidden | hidden | hidden |
| 34 | Latvia | hidden | hidden | hidden | hidden |
| 35 | Czech Republic | hidden | hidden | hidden | hidden |
| 36 | Belgium | hidden | hidden | hidden | hidden |
| 37 | Bulgaria | hidden | hidden | hidden | hidden |
| 38 | Ireland | hidden | hidden | hidden | hidden |
| 39 | Serbia | 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.