2902.90 - Other:

Category 2902.90, "Other," within the cyclic hydrocarbons chapter, serves as a residual category for cyclic hydrocarbons that are not specifically enumerated elsewhere within the 2902 heading. This classification captures a diverse range of aromatic and non-aromatic cyclic compounds. It is crucial to differentiate this category from its siblings, such as benzene (2902.20), toluene (2902.30), and xylenes (which are typically grouped together under a specific subheading), as those are designated for pure compounds or specific isomers.

This "Other" category encompasses a variety of less common or more complex cyclic hydrocarbons. Its subcategories provide further refinement. For instance, 2902.90.10.00 specifically addresses pseudocumene, while 2902.90.20.00 lists a group of polycyclic aromatic hydrocarbons and related compounds like acenaphthene, chrysene, and fluorene. Other subheadings within 2902.90 cover specialized groups like alkylbenzenes and polyalkylbenzenes (2902.90.30), specific anthracenes and diarylethylenes (2902.90.40.00), and biphenyl (2902.90.60.00). The final residual subheading, 2902.90.90.00, acts as a catch-all for any remaining cyclic hydrocarbons not otherwise classified.

The existence of these subcategories highlights the need for detailed chemical identification when classifying goods under 2902.90. Importers and exporters must carefully examine the precise chemical structure and composition of the product to determine the most appropriate subheading. This ensures accurate customs declarations and compliance with trade regulations, particularly as these compounds can have varied industrial applications, from intermediates in chemical synthesis to components in specialized fuels or materials.