From Chapter 25: Chapter 25
| HTS Code | Description | General Duty |
|---|---|---|
| 2519100000 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure Natural magnesium carbonate (magnesite) | Free |
| 2519901000 | Other Fused magnesia and dead-burned (sintered) magnesia | Free |
| 2519902000 | Other Caustic calcined magnesite | Free |
| 2519905000 | Other Other | Free |