3505 - Dextrins and other modified starches (for example, pregelatinized or esterified starches); glues based on starches, or on dextrins or other modified starches:

This HTS category, 3505, encompasses a range of modified starch products and starch-based adhesives. It specifically includes dextrins, which are produced by the thermal decomposition of starch, and other starches that have undergone chemical or physical alteration such as pregelatinization or esterification. These modifications render the starches suitable for specific industrial applications, often affecting their solubility, viscosity, or binding properties.

Within Section VI, Chapter 35, this category is distinguished from other chemical products by its focus on starch derivatives and their adhesive formulations. Unlike raw starches or starches used primarily as food ingredients (which would fall under different HTS chapters), the products classified under 3505 are generally intended for non-food industrial uses, such as in the manufacturing of paper, textiles, or as components in adhesives. Its position in Chapter 35 highlights its classification alongside other albuminoidal substances, enzymes, and glues, indicating a grouping of related industrial chemicals.

The subcategories within 3505 provide further detail for classification. "Dextrins and other modified starches" (3505.10.00) covers the modified starch materials themselves, before they are formulated into adhesives. The "Glues" subcategory (3505.20.00.00) specifically addresses formulations where these modified starches or dextrins are the primary binding agent, intended for adhesive purposes. This division allows for accurate tariff application based on whether the imported product is the modified starch raw material or the finished adhesive product.