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2519.90.50.00/Hydrated Magnesium Oxide Powder/Mexico

Hydrated Magnesium Oxide Powder from Mexico

Partially hydrated form of magnesium oxide (MgO·H2O) used in rubber compounding and flame retardants. Still classified as magnesium oxide under HTS 2519.90.50.00 when from natural calcined sources.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• LOI (loss on ignition) tests prove hydration level but maintain MgO classification

• Avoid 'magnesium hydroxide' labeling; classify by chemical identity as oxide

• Specify natural vs. precipitated hydration process

Hydrated Magnesium Oxide Powder from Mexico — Import Duty Rate | HTS 2519.90.50.00