3402.90.50 - Other

This HTS category, 3402.90.50, encompasses "Other" organic surface-active agents, surface-active preparations, washing preparations, and cleaning preparations that do not fit into more specific classifications within heading 3402. It serves as a residual category for products that are surface-active but do not qualify as soap (heading 3401) and are not specifically listed as aromatic or modified aromatic surface-active agents under sibling category 3402.90.30.00.

The distinction from the sibling category 3402.90.30.00 is crucial. While this "Other" category broadly covers surface-active preparations, it excludes those where the defining surface-active component is an aromatic or modified aromatic compound. Therefore, to classify correctly under 3402.90.50, the primary surface-active agent must not possess these aromatic characteristics.

Given that this category is a further subdivision, it is further broken down into more specific types of preparations. These subcategories exist to provide a more granular classification based on the intended use and formulation of the product. The available subcategories are: 3402.90.50.10 for Washing preparations, 3402.90.50.30 for Cleaning preparations, and 3402.90.50.50, which is another "Other" category for residual items that do not fit the specific washing or cleaning definitions.