China supplies 40.1% of U.S. imports of Optical Fibers, Optical Fiber Bundles & Cables, across 45 countries (year to date through August 2026).
HHI 2,366 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 | China | $26.1M | 40.5% | +2514.1% | 43.7% |
| 2 | Japan | $11.1M | 17.2% | +120.8% | 11.2% |
| 3 | Indonesia | $6.4M | 9.9% | +453.9% | 7.0% |
| 4 | Denmark | $5.7M | 8.8% | +10.5% | 10.0% |
| 5 | Mexico | $3.0M | 4.7% | +133.6% | 0.4% |
| 6 | Germany | $1.9M | 3.0% | +7.1% | 9.6% |
| 7 | India | $1.8M | 2.9% | +1067.3% | 16.7% |
| 8 | Netherlands | $1.7M | 2.7% | +33.0% | 10.1% |
| 9 | South Korea | $1.4M | 2.2% | +725.3% | 8.7% |
| 10 | Cambodia | $1.0M | 1.6% | +181.7% | 16.7% |
| 11 | France | $851K | 1.3% | +116.7% | 10.0% |
| 12 | Brazil | $705K | 1.1% | +6000.4% | 44.2% |
| 13 | Thailand | $485K | 0.8% | +124.9% | 19.2% |
| 14 | United Kingdom | $380K | 0.6% | +11.6% | 16.7% |
| 15 | Latvia | $332K | 0.5% | +19.8% | 10.0% |
| 16 | Czech Republic | $278K | 0.4% | -42.0% | 7.4% |
| 17 | Poland | $218K | 0.3% | +59.7% | 2.6% |
| 18 | Bulgaria | $181K | 0.3% | +7.8% | 10.0% |
| 19 | Canada | $180K | 0.3% | +36.0% | 6.0% |
| 20 | Estonia | $165K | 0.3% | +582.9% | 10.0% |
| 21 | Taiwan | $146K | 0.2% | +82.1% | 10.0% |
| 22 | Finland | $123K | 0.2% | +44.0% | 10.0% |
| 23 | Sweden | $79K | 0.1% | -38.5% | 10.0% |
| 24 | Switzerland | $29K | 0.1% | -47.7% | 12.5% |
| 25 | Portugal | $23K | <0.1% | +1088.8% | 10.0% |
| 26 | Vietnam | hidden | hidden | hidden | hidden |
| 27 | Belgium | hidden | hidden | hidden | hidden |
| 28 | Hong Kong | hidden | hidden | hidden | hidden |
| 29 | Spain | hidden | hidden | hidden | hidden |
| 30 | Slovakia | hidden | hidden | hidden | hidden |
| 31 | Singapore | hidden | hidden | hidden | hidden |
| 32 | Australia | hidden | hidden | hidden | hidden |
| 33 | Malaysia | hidden | hidden | hidden | hidden |
| 34 | Israel | hidden | hidden | hidden | hidden |
| 35 | Lithuania | hidden | hidden | hidden | hidden |
| 36 | Austria | hidden | hidden | hidden | hidden |
| 37 | Philippines | hidden | hidden | hidden | hidden |
| 38 | Romania | hidden | hidden | hidden | hidden |
| 39 | Ireland | hidden | hidden | hidden | hidden |
| 40 | Slovenia | hidden | hidden | hidden | hidden |
| 41 | Norway | hidden | hidden | hidden | hidden |
| 42 | Italy | hidden | hidden | hidden | hidden |
| 43 | Liechtenstein | hidden | hidden | hidden | hidden |
| 44 | Armenia | hidden | hidden | hidden | hidden |
| 45 | Turkey | 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.