3824.99.35.00 - Of tungsten

This classification, HTS Code 3824.99.35.00, specifically covers miscellaneous chemical products and preparations that are "of tungsten." This means the goods classified here are primarily composed of or derived from tungsten, and are not elsewhere specified in the Harmonized Tariff Schedule. Examples might include tungsten compounds, tungsten-based alloys in powder or granular form not otherwise classified, or mixtures where tungsten is the defining component for classification purposes, intended for use in industrial processes or as chemical intermediates.

Distinguishing this category from its siblings, we find other specific metallic or chemical compound classifications under 3824.99. For instance, 3824.99.31.00 is for products "of bismuth," 3824.99.33.00 for "of mercury," and 3824.99.34.00 for "of molybdenum." HTS 3824.99.35.00 is distinct because it focuses exclusively on preparations where tungsten is the key characteristic, setting it apart from those based on these other specified elements or compounds.

As HTS 3824.99.35.00 is a leaf node, there are no further subcategories. Classification at this level relies on confirming that the product is indeed a chemical preparation or mixture, not elsewhere specified, and that tungsten is its primary or defining component according to the intent of the classification. The absence of more specific headings for tungsten-containing products elsewhere in Chapter 38 is what directs such goods to this particular sub-heading.