9902.11.53 - 2,4-Diisocyanato-1-methylbenzene; 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione; 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene (CAS No. 58698-66-1) (provided for in subheading 3911.90.90)

This HTS category, 9902.11.53, encompasses a specific set of chemical compounds: 2,4-Diisocyanato-1-methylbenzene, 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione, and 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene, identified by CAS No. 58698-66-1. These substances are typically used as intermediates or components in the production of polymers and other complex chemical products. Their inclusion within Chapter 99 signifies that they are subject to special classification provisions, often temporary modifications or additional import restrictions, as proclaimed pursuant to trade agreements or Section 22 of the Agricultural Adjustment Act.

Unlike the primary categories in Section I, which deal with live animals and agricultural products, this category falls under Section XXII, dedicated to special provisions. Its placement within Chapter 99 highlights its regulatory status rather than a broad product grouping like "live animals" or "dairy products" found at earlier levels. The "provided for in subheading 3911.90.90" notation is crucial, indicating that while these specific chemicals are classified here, their ultimate disposition or further processing might relate to the broader category of polymers of cyclic ethers and epoxides, or other heterocyclic compounds, under the main HTS structure. This dual classification underscores the dynamic nature of trade regulations and the need for careful attention to special provisions.