Sintered Magnesia 92% with Iron Oxide
Sintered magnesia with 92% MgO and controlled iron oxide additions for BOF refractories, produced by dead-burning. The iron oxide is a natural impurity or minor addition that does not change the essential character, so it remains other magnesium oxide under this tariff item.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the magnesia is in crude form without sintering
Crude magnesite is classified under a different heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the iron oxide content and confirm it is within acceptable limits for magnesia classification
• Provide sintering process details
• Ensure the product is not mixed with other oxides beyond minor impurities
Related Products under Tariff item 2519.90.00
Animal Feed Grade Magnesium Oxide
Coarse magnesium oxide powder for livestock mineral supplements, formulated to prevent grass tetany. This product is calcined natural magnesite, not a medicament, so it falls under other magnesium oxide in this tariff item.
Caustic Calcined Magnesite 85/15 (MgO/SiO2)
Caustic calcined magnesite blend with 85% MgO and 15% SiO2 for refractory brick production, produced by low-temperature calcination. The silica content is typical for natural magnesite and does not alter the classification as other magnesium oxide under this tariff item.
Caustic Calcined Magnesite Powder
Caustic calcined magnesite powder produced by moderate-temperature calcination of natural magnesite, yielding reactive magnesium oxide with residual CO2. This product is not dead-burned or fused, so it falls under other magnesium oxide in this tariff item.
CCM Fines Recovery Dust
Fine dust recovered from caustic calcined magnesite production, with the same chemical composition as the primary product. As a by-product of calcination, it remains magnesium oxide and is classifiable as other under this tariff item.
Dead-burned Magnesia 0-100mm for Rotary Kilns
Dead-burned magnesia in coarse 0-100mm granules for rotary kiln linings, produced by sintering magnesite at high temperatures to achieve low reactivity and high density. This product is not calcined beyond sintering and contains no added binders, placing it under tariff item 2519.90.00 as other magnesium oxide.
Dead-burned Magnesia DBM-95
Dead-burned magnesia sintered at 1700-2200°C from calcined magnesite, with 95% MgO content and high hydration resistance, used in basic refractories. The sintering process exceeds simple calcination but does not involve fusion, so it qualifies as other magnesium oxide under this tariff item.