2611.00 - Tungsten ores and concentrates:

This HTS category, 2611.00, specifically addresses tungsten ores and concentrates. It encompasses raw materials extracted from the earth that contain tungsten, either in their naturally occurring state as ores or after initial processing to increase the tungsten content as concentrates. The classification focuses on the raw mineral forms of tungsten, not processed tungsten metal or alloys.

Distinguishing this category from its siblings at the Section V level, it is crucial to note that 2611.00 pertains solely to tungsten-bearing minerals. Other sibling categories within Section V would cover different types of ores, metals, or mineral products. For instance, Chapter 26 as a whole deals with various ores, slag, and ash, but 2611.00 is the designated subheading for tungsten.

Within this category, two distinct subcategories exist: 2611.00.30.00 for "Ores" and 2611.00.60.00 for "Concentrates." The "Ores" subheading covers the naturally occurring mineral deposits containing tungsten before any significant processing aimed at increasing its concentration. The "Concentrates" subheading, conversely, includes materials that have undergone beneficiation processes to raise the percentage of tungsten, making them more economically viable for further smelting and refining. This distinction is important for customs purposes as it reflects different stages of mineral extraction and initial processing.