Canada supplies 35.4% of U.S. imports of Slag Wool, Rock Wool & Similar Mineral Wools — Bulk, Sheets…, across 37 countries (year to date through August 2026).
HHI 1,861 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
37 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Canada | $4.7M | 36.6% | +5.3% | 0.1% |
| 2 | United Kingdom | $1.6M | 12.4% | +34.5% | 13.8% |
| 3 | Germany | $1.5M | 11.5% | +57.3% | 10.1% |
| 4 | Mexico | $1.4M | 11.2% | -25.8% | 0.1% |
| 5 | Japan | $1.4M | 10.9% | +6.2% | 12.5% |
| 6 | China | $1.1M | 8.3% | +38.1% | 41.1% |
| 7 | Poland | $606K | 4.7% | +12.8% | 10.0% |
| 8 | Netherlands | $188K | 1.5% | +23.6% | 10.2% |
| 9 | Turkey | $130K | 1.0% | +63.7% | 16.4% |
| 10 | South Korea | $124K | 1.0% | -62.1% | 12.5% |
| 11 | Czech Republic | $39K | 0.3% | -35.2% | 10.0% |
| 12 | Italy | $32K | 0.3% | -62.2% | 10.0% |
| 13 | Austria | $20K | 0.2% | +145.5% | 10.0% |
| 14 | Sweden | $17K | 0.1% | -- | 10.0% |
| 15 | Ukraine | $14K | 0.1% | -- | 3.9% |
| 16 | India | $13K | 0.1% | -44.7% | 13.9% |
| 17 | Denmark | $11K | 0.1% | +427.3% | 6.3% |
| 18 | Romania | $3K | <0.1% | -- | -- |
| 19 | France | -- | 0.0% | -31.0% | -- |
| 20 | Spain | -- | 0.0% | -76.0% | -- |
| 21 | Belgium | -- | 0.0% | +2639.6% | -- |
| 22 | Croatia | -- | 0.0% | +146.9% | -- |
| 23 | Slovenia | -- | 0.0% | -10.8% | -- |
| 24 | Lebanon | -- | 0.0% | -- | -- |
| 25 | Israel | -- | 0.0% | -- | -- |
| 26 | United Arab Emirates | hidden | hidden | hidden | hidden |
| 27 | Vietnam | hidden | hidden | hidden | hidden |
| 28 | Malaysia | hidden | hidden | hidden | hidden |
| 29 | Norway | hidden | hidden | hidden | hidden |
| 30 | Iceland | hidden | hidden | hidden | hidden |
| 31 | Hong Kong | hidden | hidden | hidden | hidden |
| 32 | Taiwan | hidden | hidden | hidden | hidden |
| 33 | Brazil | hidden | hidden | hidden | hidden |
| 34 | Hungary | hidden | hidden | hidden | hidden |
| 35 | Sierra Leone | hidden | hidden | hidden | hidden |
| 36 | Lithuania | hidden | hidden | hidden | hidden |
| 37 | Slovakia | 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.