9902.01.53 - Cesium iodide (CAS No. 7789-17-5) (provided for in subheading 2827.60.51)

This HTS category, 9902.01.53, specifically covers Cesium iodide (CAS No. 7789-17-5). It is important to note that this classification is not for the general classification of Cesium iodide based on its inherent chemical properties, but rather for its importation under specific temporary legislation or trade agreements as indicated by its placement within Chapter 99. The provision explicitly states that Cesium iodide is "provided for in subheading 2827.60.51," which is the standard subheading for such inorganic compounds under Chapter 28.

Therefore, this category serves as a specific regulatory or tariff modification point for Cesium iodide, distinct from its primary classification under Chapter 28. Its existence in Chapter 99 signifies a temporary or conditional application of tariffs, quotas, or other trade measures, likely related to international agreements or specific national policies. Unlike its sibling categories, which represent broad classes of live animals, this category pertains to a specific chemical compound imported under special provisions.

As this is a leaf node within Chapter 99, there are no further subcategories. Classification under 9902.01.53 is contingent on meeting the specific requirements outlined by the temporary legislation or trade agreement referenced by this HTS code. Importers must ensure compliance with any associated documentation, quotas, or duties applicable to this special classification.