China supplies 26.5% of U.S. imports of Magnesium Sulfate, across 21 countries (year to date through September 2026).
HHI 1,823 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
21 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | China | $409K | 29.6% | -1.9% | 31.0% |
| 2 | Mexico | $189K | 13.7% | +4.5% | 0.0% |
| 3 | Germany | $145K | 10.5% | -36.6% | 5.8% |
| 4 | Japan | $137K | 9.9% | +12.6% | 3.7% |
| 5 | Czech Republic | $132K | 9.6% | +24.6% | 3.7% |
| 6 | India | $97K | 7.0% | -23.2% | 3.7% |
| 7 | South Korea | $80K | 5.8% | +62.7% | 3.7% |
| 8 | Vietnam | $77K | 5.5% | -14.9% | 3.7% |
| 9 | Colombia | $57K | 4.1% | -19.5% | 1.5% |
| 10 | Canada | $22K | 1.6% | +49.3% | 0.0% |
| 11 | Australia | $19K | 1.4% | -67.4% | 12.5% |
| 12 | Netherlands | $19K | 1.4% | +91.8% | 3.7% |
| 13 | Spain | -- | 0.0% | -- | -- |
| 14 | Turkey | -- | 0.0% | -72.1% | -- |
| 15 | Switzerland | -- | 0.0% | +25.0% | -- |
| 16 | United Kingdom | -- | 0.0% | -- | -- |
| 17 | Denmark | -- | 0.0% | -- | -- |
| 18 | Hong Kong | -- | 0.0% | +20.4% | -- |
| 19 | Peru | -- | 0.0% | -- | -- |
| 20 | Poland | -- | 0.0% | -- | -- |
| 21 | Dominican Republic | -- | 0.0% | -- | -- |
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.