2917.12.20.00 - Plasticizers

This HTS category, 2917.12.20.00, specifically covers "Plasticizers." Plasticizers are additives that increase the plasticity or decrease the viscosity of a material, primarily polymers. They are typically organic compounds that are incorporated into plastics to make them more flexible, durable, and easier to process. Examples of common plasticizers falling under this classification include phthalates, adipates, and citrates when they are not specifically covered by a more precise subheading.

This particular subheading is distinguished from its sibling category, 2917.12.50.00 ("Other"), by its specific focus on plasticizers as the primary functional use of the chemical compound. While the "Other" category would encompass adipic acid derivatives that do not primarily function as plasticizers, or perhaps are classified as intermediates for other purposes, this subheading is reserved for those compounds whose principal application is to modify the physical properties of plastics.

As this is a leaf node in the HTS classification structure, there are no further subcategories. Therefore, the classification hinges on whether the adipic acid derivative in question functions predominantly as a plasticizer. Importers and exporters should consider the intended use and stated properties of the chemical product when making this classification determination.