Mexico supplies 22.2% of U.S. imports of Optical Spectrometers, across 55 countries (year to date through August 2026).
HHI 1,272 of 10,000 · HHI 1,000–1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
55 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Germany | $13.3M | 28.3% | -8.5% | 9.4% |
| 2 | Mexico | $11.0M | 23.3% | +0.3% | 0.0% |
| 3 | United Kingdom | $4.8M | 10.2% | +12.4% | 9.8% |
| 4 | Canada | $4.2M | 8.8% | +29.7% | 0.7% |
| 5 | Singapore | $2.1M | 4.5% | -35.8% | 12.5% |
| 6 | Malaysia | $1.6M | 3.5% | -35.4% | 7.8% |
| 7 | Sweden | $1.5M | 3.2% | +2.6% | 10.0% |
| 8 | Denmark | $1.4M | 3.0% | -8.9% | 10.0% |
| 9 | China | $1.4M | 2.9% | -11.0% | 29.7% |
| 10 | Japan | $935K | 2.0% | -13.2% | 12.3% |
| 11 | France | $879K | 1.9% | +2.4% | 9.8% |
| 12 | Switzerland | $631K | 1.3% | -47.1% | 10.8% |
| 13 | Austria | $579K | 1.2% | -63.0% | 10.0% |
| 14 | Belgium | $436K | 0.9% | -1.7% | 10.0% |
| 15 | Bulgaria | $365K | 0.8% | +202.1% | 10.0% |
| 16 | Finland | $277K | 0.6% | -41.7% | 9.1% |
| 17 | South Korea | $268K | 0.6% | +134.3% | 12.5% |
| 18 | Netherlands | $200K | 0.4% | -10.8% | 10.0% |
| 19 | Israel | $194K | 0.4% | -49.1% | 12.2% |
| 20 | Thailand | $182K | 0.4% | -6.3% | 12.1% |
| 21 | Norway | $177K | 0.4% | -65.1% | 6.6% |
| 22 | Slovakia | $99K | 0.2% | -25.7% | 10.0% |
| 23 | Taiwan | $96K | 0.2% | -33.6% | 10.0% |
| 24 | Spain | $65K | 0.1% | -78.3% | 10.0% |
| 25 | New Zealand | $60K | 0.1% | +6.4% | 12.5% |
| 26 | India | hidden | hidden | hidden | hidden |
| 27 | Estonia | hidden | hidden | hidden | hidden |
| 28 | Romania | hidden | hidden | hidden | hidden |
| 29 | Italy | hidden | hidden | hidden | hidden |
| 30 | Vietnam | hidden | hidden | hidden | hidden |
| 31 | Australia | hidden | hidden | hidden | hidden |
| 32 | Czech Republic | hidden | hidden | hidden | hidden |
| 33 | Serbia | hidden | hidden | hidden | hidden |
| 34 | Poland | hidden | hidden | hidden | hidden |
| 35 | Cayman Islands | hidden | hidden | hidden | hidden |
| 36 | Ireland | hidden | hidden | hidden | hidden |
| 37 | Cyprus | hidden | hidden | hidden | hidden |
| 38 | Saudi Arabia | hidden | hidden | hidden | hidden |
| 39 | Argentina | hidden | hidden | hidden | hidden |
| 40 | Paraguay | hidden | hidden | hidden | hidden |
| 41 | Lithuania | hidden | hidden | hidden | hidden |
| 42 | Brazil | hidden | hidden | hidden | hidden |
| 43 | Chile | hidden | hidden | hidden | hidden |
| 44 | Indonesia | hidden | hidden | hidden | hidden |
| 45 | Philippines | hidden | hidden | hidden | hidden |
| 46 | Peru | hidden | hidden | hidden | hidden |
| 47 | Colombia | hidden | hidden | hidden | hidden |
| 48 | Hong Kong | hidden | hidden | hidden | hidden |
| 49 | Dominican Republic | hidden | hidden | hidden | hidden |
| 50 | Ukraine | 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.