Mexico supplies 57.0% of U.S. imports of Glass Fiber Yarn and Slivers, across 15 countries (year to date through August 2026).
HHI 4,151 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
15 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Mexico | $6.9M | 63.3% | +35.3% | 0.0% |
| 2 | Taiwan | $2.6M | 23.9% | -29.4% | 9.6% |
| 3 | Latvia | $570K | 5.2% | -25.5% | 9.0% |
| 4 | Canada | $361K | 3.3% | +71.9% | 0.0% |
| 5 | China | $179K | 1.6% | -17.0% | 43.8% |
| 6 | Poland | $123K | 1.1% | -24.1% | 10.0% |
| 7 | Czech Republic | $72K | 0.7% | -42.3% | 10.0% |
| 8 | Italy | $55K | 0.5% | +525.5% | 10.0% |
| 9 | United Kingdom | $24K | 0.2% | -56.0% | 14.4% |
| 10 | Germany | $9K | 0.1% | -40.6% | 10.0% |
| 11 | Japan | $2K | <0.1% | -55.5% | 12.5% |
| 12 | Spain | -- | 0.0% | -43.1% | -- |
| 13 | Netherlands | -- | 0.0% | -98.4% | -- |
| 14 | France | -- | 0.0% | -2.0% | -- |
| 15 | India | -- | 0.0% | +264.5% | -- |
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.