2613.90.00.00 - Other

This HTS classification, 2613.90.00.00, encompasses all molybdenum ores and concentrates that are not specifically classified under other headings within this chapter. It serves as a residual category, capturing any molybdenum-bearing materials that do not fit the distinct definition of "roasted" molybdenum ores and concentrates. The primary defining characteristic for inclusion in this category is that the material is a molybdenum ore or concentrate, meaning it is a naturally occurring geological deposit containing molybdenum compounds or a processed material with a higher concentration of molybdenum than the original ore, but it has not undergone the specific roasting process.

This category is distinguished from its sibling, 2613.10.00.00, by the absence of roasting as a defining characteristic. While 2613.10.00.00 specifically applies to molybdenum ores and concentrates that have been subjected to heat treatment to alter their chemical composition, typically to facilitate extraction, 2613.90.00.00 covers all other forms. This includes, for example, unroasted molybdenite concentrates, molybdenum-bearing slags, and other intermediate or raw materials derived from molybdenum ore that have not undergone the roasting stage.

As this is a leaf node in the HTS structure, there are no further subcategories to introduce. Therefore, the focus for classification under 2613.90.00.00 lies on meticulously identifying the material as a molybdenum ore or concentrate and confirming that it does not meet the criteria for any other specific heading related to molybdenum ores or their processing. Classification will hinge on the physical and chemical characteristics of the material, its origin, and the stage of processing it has undergone, specifically ruling out any form of roasting.