2827.31.00.00 - Of magnesium

This HTS category, 2827.31.00.00, specifically encompasses magnesium chloride. Magnesium chloride is an inorganic salt, often found in crystalline form, and is utilized in a wide array of industrial and commercial applications. These include its use as a de-icing agent, a dust suppressant, a component in cements and fireproofing materials, and in the production of metallic magnesium. Its classification hinges on its chemical identity as a chloride salt of magnesium, distinguishing it from other metallic chloride compounds.

When classifying within the broader heading of "Other chlorides," it is crucial to differentiate 2827.31.00.00 from its sibling categories based on the specific cation. For instance, 2827.32.00.00 covers chlorides of aluminum, while 2827.35.00.00 is reserved for nickel chlorides. The "Other" category, 2827.39, serves as a residual for chloride compounds of metals not otherwise specified within this sub-heading.

As this node represents a leaf category within the HTS structure, there are no further subcategories. Therefore, the focus for classification under 2827.31.00.00 is on the definitive identification of the substance as magnesium chloride. This involves verifying the chemical composition, often through laboratory analysis or review of product documentation, to ensure accurate customs reporting and compliance.