Mexico supplies 68.8% of U.S. imports of Fluorspar (>97% Calcium Fluoride), across 10 countries (year to date through September 2026).
HHI 4,998 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 | $12.3M | 69.8% | +24.5% | 0.0% |
| 2 | South Africa | $5.0M | 28.5% | -1.2% | 0.0% |
| 3 | China | $296K | 1.7% | -1.8% | 0.6% |
| 4 | Spain | -- | 0.0% | -- | -- |
| 5 | Canada | -- | 0.0% | +12.7% | -- |
| 6 | Thailand | -- | 0.0% | -- | -- |
| 7 | Mongolia | -- | 0.0% | -- | -- |
| 8 | India | -- | 0.0% | -- | -- |
| 9 | United Kingdom | -- | 0.0% | -87.4% | -- |
| 10 | Germany | -- | 0.0% | -70.4% | -- |
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.