2519.90.50.00
Other
Classification path
- 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
- Other
- Other
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- 15.4¢/kg
- Unit of quantity
- kg
Related lines in heading 2519
About heading 2519
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
Heading 2519 covers natural magnesium carbonate (magnesite), fused magnesia, dead-burned (sintered) magnesia, caustic calcined magnesite, and other magnesium oxide, whether or not pure. It is split first between natural magnesite in 2519.10 and other products in 2519.90, then by product form: fused or dead-burned magnesia, caustic calcined magnesite, and other magnesium oxide. All listed lines carry a general (MFN) rate of Free.
Full guide to heading 2519Products in this heading
- Natural magnesite ore
- Natural magnesium carbonate powder
- Dead-burned (sintered) magnesia
- Fused magnesia
- Caustic calcined magnesite
- Magnesium oxide powder, whether or not pure
- Refractory-grade magnesia
Frequently asked questions
What is the HTS code for natural magnesite?
Natural magnesium carbonate (magnesite) is classified under 2519.10.00.00, with a general (MFN) rate of Free.
What is the duty on fused magnesia?
Fused magnesia is classified under 2519.90.10.00 and has a general (MFN) rate of Free.
How do I classify caustic calcined magnesite?
Caustic calcined magnesite goes under 2519.90.20.00 and has a general (MFN) rate of Free. Other magnesium oxide, whether or not pure, goes under 2519.90.50.00, also Free.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.