3402.42.90.00 - Other 🖩

This category, HTS 3402.42.90.00, encompasses "Other" non-ionic organic surface-active agents that are not specifically defined within the sibling category. It acts as a residual classification for non-ionic surface-active agents that do not fall under the "fatty substances of animal, vegetable or microbial origin" (3402.42.20). These products are typically synthetic organic compounds that exhibit surface-active properties, meaning they can reduce the surface tension between two liquids, a liquid and a gas, or a liquid and a solid. They are used in a wide array of industrial and consumer applications for their ability to emulsify, disperse, wet, or foam.

The key differentiator for this category is the absence of a specific chemical or origin-based classification as fatty substances. While both this category and its sibling deal with non-ionic organic surface-active agents, 3402.42.20 is reserved for those derived from natural fatty sources. This residual "Other" category therefore includes synthetic non-ionic surfactants whose chemical structure or manufacturing process does not align with the fatty substance designation, but still perform essential surface-active functions.

As this is a leaf node, there are no further subcategories within HTS 3402.42.90.00. Classification within this code would rely on the detailed chemical composition and intended use of the surface-active agent, ensuring it meets the definition of a non-ionic organic surface-active agent and is not specifically provided for in the preceding subheadings. This often involves consulting technical datasheets and laboratory analyses to confirm the absence of fatty substance characteristics and confirm its non-ionic nature.