9902.10.04 - Product mixtures containing methyl 4-{[(3-methoxy-4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)carbonyl] sulfamoyl}-5-methyl-3-thiophenecarboxylate (Thiencarbazone-methyl) (CAS No. 317815-83-1), methyl 2-{[(4,6-dimethoxy-2-pyrimidinyl) carbamoyl] sulfamoyl}-4-{[(methylsulfonyl)amino]methyl} benzoate (Mesosulfuron-methyl) (CAS No. 208465-21-8) and diethyl 1-(2,4-dichlorophenyl)-5-methyl-4,5-dihydro-1H-pyrazole -3,5-dicarboxylate (Mefenpyr-diethyl) (CAS No. 135590-91-9) (provided for in subheading 3808.93.15)

HTS Code 9902.10.04 specifically classifies product mixtures containing three distinct chemical compounds: Thiencarbazone-methyl, Mesosulfuron-methyl, and Mefenpyr-diethyl. These particular substances are often utilized in agricultural applications, commonly as active ingredients in herbicides or plant growth regulators. The inclusion of specific CAS (Chemical Abstracts Service) numbers in the description aids in precise identification and differentiation of these chemicals.

This category is part of Section XXII, which deals with temporary legislation and modifications, particularly those enacted under trade agreements or Section 22 of the Agricultural Adjustment Act. Unlike the primary HTS chapters (like Chapter 01 covering live animals), which classify goods based on their inherent nature and material composition, Chapter 99 entries are designated for specific, often time-limited, tariff treatments or restrictions. Therefore, 9902.10.04 is not a permanent classification but rather a temporary measure related to the import of these specific chemical mixtures.

As a leaf node, HTS Code 9902.10.04 does not have further subcategories. Its specificity means that any product fitting this description, which is a mixture of the named chemicals (Thiencarbazone-methyl, Mesosulfuron-methyl, and Mefenpyr-diethyl) and is intended for import under the conditions addressed by Chapter 99, will be classified directly under this code. The parenthetical reference to subheading 3808.93.15 indicates the primary classification these substances might fall under in the absence of temporary provisions, highlighting that Chapter 99 creates a distinct, temporary import pathway.