China supplies 46.9% of U.S. imports of Magnesite, Fused Magnesia & Magnesium Oxide, across 23 countries (year to date through August 2026).
HHI 2,701 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
23 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | China | $4.6M | 26.7% | -- | 0.5% |
| 2 | Israel | $3.4M | 19.7% | -- | 3.9% |
| 3 | Canada | $3.0M | 17.6% | -- | 0.0% |
| 4 | Brazil | $2.6M | 15.0% | -- | 0.9% |
| 5 | Mexico | $1.8M | 10.4% | -- | 0.0% |
| 6 | Japan | $947K | 5.5% | -- | 0.9% |
| 7 | Turkey | $146K | 0.9% | -- | 10.6% |
| 8 | Germany | $137K | 0.8% | -- | 10.0% |
| 9 | Greece | $119K | 0.7% | -- | 0.0% |
| 10 | Slovakia | $115K | 0.7% | -- | 4.3% |
| 11 | Spain | $104K | 0.6% | -- | 0.0% |
| 12 | Austria | $69K | 0.4% | -- | 10.0% |
| 13 | France | $66K | 0.4% | -- | 10.0% |
| 14 | United Kingdom | $38K | 0.2% | -- | 0.0% |
| 15 | Bulgaria | $35K | 0.2% | -- | 0.0% |
| 16 | Netherlands | $31K | 0.2% | -- | 2.1% |
| 17 | Liechtenstein | $7K | <0.1% | -- | 0.0% |
| 18 | Norway | -- | 0.0% | -- | -- |
| 19 | Italy | -- | 0.0% | -- | -- |
| 20 | India | -- | 0.0% | -- | -- |
| 21 | South Korea | -- | 0.0% | -- | -- |
| 22 | Taiwan | -- | 0.0% | -- | -- |
| 23 | Belgium | -- | 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.