Mexico supplies 89.0% of U.S. imports of Alums, across 10 countries (year to date through September 2026).
HHI 8,009 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
10 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Mexico | $428K | 96.4% | -3.8% | 0.0% |
| 2 | China | $9K | 2.0% | -55.1% | 39.1% |
| 3 | Italy | $7K | 1.6% | -62.2% | 10.0% |
| 4 | Germany | -- | 0.0% | -58.7% | -- |
| 5 | Spain | -- | 0.0% | -26.9% | -- |
| 6 | Canada | -- | 0.0% | -88.1% | -- |
| 7 | India | -- | 0.0% | -40.8% | -- |
| 8 | Thailand | -- | 0.0% | +85.6% | -- |
| 9 | Vietnam | -- | 0.0% | +239.8% | -- |
| 10 | France | -- | 0.0% | +102.8% | -- |
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.