9902.05.48 - 3-Mesityl-2-oxo-1-oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutyrate (Spiromesifen) (CAS No. 283594-90-1) (provided for in subheading 2932.20.10)

This HTS category, 9902.05.48, specifically classifies Spiromesifen (CAS No. 283594-90-1), identified as 3-Mesityl-2-oxo-1-oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutyrate. Its inclusion within Chapter 99 signifies that it is subject to temporary legislation, modifications proclaimed pursuant to trade agreements, or additional import restrictions under Section 22 of the Agricultural Adjustment Act. Importantly, this classification is *provided for* under subheading 2932.20.10, indicating that while it falls under temporary provisions, its fundamental nature aligns with products classified there.

Distinguishing this category from its sibling entries, which encompass a wide range of live animals under Chapter 01, is straightforward. This category is not concerned with live animals but rather with a specific chemical compound, Spiromesifen, a pesticide. The "99" series of HTS codes are utilized for unique or temporary classifications that deviate from the standard product-based chapters.

As a leaf node, HTS category 9902.05.48 has no further subcategories. The classification is definitive for the identified substance. Classification decisions for such items typically hinge on the specific chemical identity, its intended use (in this case, as a pesticide falling under broader chemical or agricultural regulations), and the existence of specific temporary proclamations or restrictions that necessitate its placement in this unique HTS chapter.