Reactive Caustic Magnesite 90% MgO
Reactive caustic magnesite powder with 90% MgO for fertilizer production and acid neutralization, produced by light calcination of natural magnesite. The product is not chemically modified beyond calcination, so it falls under other magnesium oxide in 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 magnesite is in crude, uncalcined form
Crude magnesite is classified separately from calcined products.
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
• Provide MgO content and reactivity data
• Confirm the product is not classified as a fertilizer under other headings
• Ensure the product is not mixed with other nutrients
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.