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2519.90.50.00/Dunite-Derived Magnesium Oxide/Japan

Dunite-Derived Magnesium Oxide from Japan

Magnesium oxide calcined from dunite rock (olivine), used in steelmaking and refractories. Classified under HTS 2519.90.50.00 as other magnesium oxide from natural mineral sources.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Document source rock analysis showing magnesium oxide predominance

• Distinguish from fused magnesia via melting point tests if challenged

• Silica content declaration important; high silica may affect classification

Dunite-Derived Magnesium Oxide from Japan — Import Duty Rate | HTS 2519.90.50.00