Reactive Caustic Magnesite 90% MgO from Canada
Lightly calcined magnesite powder with 90% MgO content, used primarily in fertilizer production and acid neutralization. Falls under HTS 2519.90.20.00 because it's produced from natural magnesite via caustic calcination, retaining reactivity characteristics.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide thermal analysis reports showing calcination temperature 700-1000°C to distinguish from dead-burned (1400°C+)
• Label shipments clearly as 'caustic calcined magnesite for industrial use' to prevent reclassification
• Check for EU origin preferences; many suppliers qualify for GSP duty reductions