2519.90.10.00/Fused Magnesia FM-P 99.5% for EAF/Mexico

Fused Magnesia FM-P 99.5% for EAF from Mexico

Premium fused magnesia with 99.5% MgO purity, electric arc fused for electric arc furnace (EAF) refractories, featuring exceptional corrosion resistance. HTS 2519.90.10.00 classification applies to this fused magnesia product used in high-purity steel production.

Duty Rate — Mexico → United States

Rate breakdown

9903.05.860%Universal product exemption (U.S. note 52(b))

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Import Tips

• Mandate XRF analysis certificates showing CaO/SiO2 ratio <1.2 for EAF grade verification

• Avoid common error of declaring as 'caustic magnesia'; fused magnesia has distinct crystalline structure visible via XRD testing

• For container loads, ensure ventilation certificates as magnesia dust can be reactive with moisture