Magnesium Chloride Hexahydrate from Japan
Magnesium chloride hexahydrate (MgCl2·6H2O) is a chemically defined inorganic salt of magnesium, commonly used as a de-icing agent and dust suppressant. It falls under HTS 2827.31.00.00 as a chloride of magnesium, fitting Chapter 28's provisions for metal salts. This crystalline form is the most prevalent commercial variant.
Duty Rate — Japan → United States
1.5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Verify purity and hydration state via lab analysis to confirm classification under chemically defined magnesium chlorides
• Include Safety Data Sheets (SDS) and chemical composition certificates for CBP review to avoid misclassification
• Watch for moisture content changes during shipping that could alter the hexahydrate form and documentation