9902.11.63 - Sodium hyaluronate (CAS No. 9067-32-7) (provided for in subheading 3913.90.20)

This HTS category, 9902.11.63, specifically covers Sodium Hyaluronate, identified by CAS Number 9067-32-7. While its primary classification can be found under subheading 3913.90.20 as a "prepared" polymer, this 9902 code designates a temporary modification or restriction related to its import. This suggests that specific import conditions, such as quotas, duties, or licensing requirements, may apply to Sodium Hyaluronate when entered under this provision.

As a temporary or special provision, this category does not directly compete with the broader range of goods found in the initial chapters of the HTS, such as live animals (Chapters 01), animal products (Chapters 02-05), or even other polymers (Chapter 39). Its existence within Chapter 99 signifies a deviation from standard tariff treatment, highlighting its unique regulatory status.

Given that this is a leaf node, there are no further subdivisions within this specific classification. Therefore, the focus remains on understanding the precise conditions attached to the import of Sodium Hyaluronate when entered under HTS 9902.11.63, as these temporary measures dictate the final duty and entry requirements, overriding its standard classification under Chapter 39. Importers must consult the specific proclamations and legal texts associated with this 9902 code to ensure compliance.