2903.89.70.10 - Other hexabromocyclododecanes (HBCDs)

This HTS category, 2903.89.70.10, specifically classifies "Other hexabromocyclododecanes (HBCDs)". Hexabromocyclododecanes are a class of brominated flame retardants. This particular subheading encompasses HBCDs that do not fit into any more specific preceding subheadings within the 2903.89.70 grouping. The classification hinges on the molecular structure of the compound, which must be a cyclododecane core with six bromine atoms attached, and its exclusion from any more narrowly defined categories.

The distinction from the sibling category, 2903.89.70.90 ("Other"), lies in the specificity of the compound. While 2903.89.70.90 would capture any remaining halogenated cyclododecane derivatives not otherwise classified, 2903.89.70.10 is reserved for the specific group of hexabromocyclododecanes. This means that if an article is identified as a hexabromocyclododecane, it must be classified under 2903.89.70.10, provided it meets the general criteria of halogenated cyclododecane derivatives.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification under this subheading requires a definitive identification of the imported or exported substance as a hexabromocyclododecane. Practical classification will likely involve chemical analysis to confirm the presence of the cyclododecane structure and the hexabromo substitution pattern, ensuring it is distinct from other brominated flame retardants or cyclododecane derivatives.