2827.39.40.00 - Of tungsten

This HTS category, 2827.39.40.00, specifically classifies chlorides of tungsten. These are inorganic chemical compounds where tungsten is bonded to chlorine. This grouping encompasses various tungsten chlorides used in industrial processes, such as catalysts, precursors for advanced materials, or components in specialized chemical syntheses.

Distinguishing this category from its siblings is crucial. For instance, while other entries under 2827.39.XX cover chlorides of vanadium, tin, titanium, barium, and iron, this specific code isolates tungsten-based chlorides. The key differentiator is the presence of tungsten as the primary metallic element forming the chloride compound, as opposed to other metals listed in the sibling categories.

As this node represents a leaf in the HTS classification, there are no further subcategories. Therefore, the focus for classification within 2827.39.40.00 lies on confirming the presence of tungsten within the chemical chloride compound. Imported or exported goods must be unequivocally identifiable as tungsten chlorides to be correctly classified under this heading, ensuring adherence to customs regulations and proper duty assessment.