Mexico supplies 19.9% of U.S. imports of Optical Fibers, Polarizing Sheets & Unmounted Optical…, across 62 countries (year to date through August 2026).
HHI 938 of 10,000 · HHI below 1,000. The sum of each country’s squared percentage share; one country with everything scores 10,000.
62 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Mexico | $59.1M | 20.5% | -- | 1.1% |
| 2 | China | $48.1M | 16.7% | -- | 37.7% |
| 3 | Germany | $24.0M | 8.3% | -- | 9.6% |
| 4 | Japan | $22.6M | 7.9% | -- | 11.6% |
| 5 | Ireland | $21.5M | 7.5% | -- | 10.0% |
| 6 | Thailand | $15.3M | 5.3% | -- | 14.5% |
| 7 | Laos | $10.1M | 3.5% | -- | 2.1% |
| 8 | Singapore | $9.2M | 3.2% | -- | 12.6% |
| 9 | Indonesia | $9.1M | 3.2% | -- | 8.4% |
| 10 | France | $6.6M | 2.3% | -- | 10.0% |
| 11 | Philippines | $6.4M | 2.2% | -- | 14.4% |
| 12 | Vietnam | $6.4M | 2.2% | -- | 13.0% |
| 13 | Canada | $6.3M | 2.2% | -- | 1.9% |
| 14 | Denmark | $5.7M | 2.0% | -- | 10.0% |
| 15 | United Kingdom | $5.5M | 1.9% | -- | 11.4% |
| 16 | Taiwan | $4.4M | 1.5% | -- | 9.7% |
| 17 | South Korea | $4.0M | 1.4% | -- | 11.1% |
| 18 | Costa Rica | $3.9M | 1.3% | -- | 12.5% |
| 19 | Malaysia | $2.6M | 0.9% | -- | 11.4% |
| 20 | Netherlands | $2.3M | 0.8% | -- | 9.9% |
| 21 | Brazil | $2.3M | 0.8% | -- | 41.0% |
| 22 | India | $2.3M | 0.8% | -- | 15.5% |
| 23 | Switzerland | $1.5M | 0.5% | -- | 12.4% |
| 24 | Israel | $1.1M | 0.4% | -- | 12.5% |
| 25 | Cambodia | $1.0M | 0.4% | -- | 16.7% |
| 26 | Czech Republic | hidden | hidden | hidden | hidden |
| 27 | Italy | hidden | hidden | hidden | hidden |
| 28 | Latvia | hidden | hidden | hidden | hidden |
| 29 | Hungary | hidden | hidden | hidden | hidden |
| 30 | Bulgaria | hidden | hidden | hidden | hidden |
| 31 | Sweden | hidden | hidden | hidden | hidden |
| 32 | Lithuania | hidden | hidden | hidden | hidden |
| 33 | Romania | hidden | hidden | hidden | hidden |
| 34 | Poland | hidden | hidden | hidden | hidden |
| 35 | Finland | hidden | hidden | hidden | hidden |
| 36 | Estonia | hidden | hidden | hidden | hidden |
| 37 | Australia | hidden | hidden | hidden | hidden |
| 38 | Austria | hidden | hidden | hidden | hidden |
| 39 | Hong Kong | hidden | hidden | hidden | hidden |
| 40 | Belgium | hidden | hidden | hidden | hidden |
| 41 | Norway | hidden | hidden | hidden | hidden |
| 42 | Portugal | hidden | hidden | hidden | hidden |
| 43 | Serbia | hidden | hidden | hidden | hidden |
| 44 | Spain | hidden | hidden | hidden | hidden |
| 45 | Liechtenstein | hidden | hidden | hidden | hidden |
| 46 | Slovakia | hidden | hidden | hidden | hidden |
| 47 | Greece | hidden | hidden | hidden | hidden |
| 48 | Maldives | hidden | hidden | hidden | hidden |
| 49 | Ukraine | hidden | hidden | hidden | hidden |
| 50 | Armenia | 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.