9902.01.49 - Potassium zirconate (CAS No.16923-95-8) (provided for in subheading 2826.90.90)

This HTS category, 9902.01.49, specifically covers Potassium zirconate (CAS No. 16923-95-8). While the primary classification for this substance would typically fall under subheading 2826.90.90, its inclusion within Chapter 99 signifies a temporary legislative or modification provision related to its import. This chapter is reserved for special circumstances, such as temporary trade agreements or specific import restrictions proclaimed under Section 22 of the Agricultural Adjustment Act.

Distinguishing this category from its many siblings within Chapter 99 is crucial. Each sibling, such as live animals or other goods listed under various 99xx codes, represents a distinct temporary modification or restriction. Category 9902.01.49's uniqueness lies in its direct association with Potassium zirconate, indicating that any temporary provisions or restrictions at this level are specifically targeted towards this particular chemical compound.

As this is a leaf node within the HTS structure, there are no further subcategories. Therefore, the classification within 9902.01.49 is definitive for Potassium zirconate when subject to the specific temporary provisions it represents. Understanding the underlying reason for its placement in Chapter 99, whether it's a temporary duty reduction, an import quota, or another form of restriction, is essential for accurate customs compliance.