9902.09.40 - Product mixtures containing methyl N-(2-methoxyacetyl)-N-(2,6-xylyl)-DL-alaninate (Metalaxyl) (CAS No. 57837-19-1), 5 - fluoro-1,3-dimethyl - N-[2-(4-methylpentan-2-yl) phenyl] -1H-pyrazole-4-carboxamide (Penflufen) (CAS No. 494793-67-8) and 2-[(2RS)-2-(1-chlorocyclopropyl) -3-(2-chlorophenyl) -2-hydroxypropyl] - 2H-1,2,4-triazole-3(4H)-thione (Prothioconazole) (CAS No. 178928-70-6) (provided for in subheading 3808.92.15)

This HTS category, 9902.09.40, covers specific product mixtures containing three distinct active fungicidal ingredients: Metalaxyl, Penflufen, and Prothioconazole. These are not raw chemical compounds but rather formulated products designed for agricultural or horticultural pest control. The presence of all three active ingredients in a single mixture is the defining characteristic for classification under this subheading.

Unlike the primary HTS Chapters covering chemicals (e.g., Chapter 38), this category falls under Section XXII, which deals with temporary legislation and special classification provisions, including restrictions and modifications related to trade agreements and agricultural legislation. This signifies that imports under this code are subject to specific, potentially time-limited, regulations beyond standard tariff duties, often reflecting agricultural policy objectives.

As a leaf node, this HTS code does not have further subdivisions. Therefore, the primary classification criterion is the definitive presence of the specified mixture of Metalaxyl, Penflufen, and Prothioconazole, as documented by the corresponding CAS numbers and its preceding designation within subheading 3808.92.15, which typically covers fungicides in preparations. Importers must ensure that their product precisely matches this composition to fall under this specialized provision.