2610.00.00.40 - Having a chromium content equivalent to more than 40 percent but less than 46 percent chromic oxide (Cr2O3)

This HTS classification covers chromium ores and concentrates specifically characterized by a chromium content equivalent to more than 40 percent but less than 46 percent chromic oxide (Cr2O3). These materials are derived from the mining and initial processing of chromium-bearing minerals, such as chromite, and are intended for further metallurgical or chemical applications. The precise measurement of chromic oxide content is the defining factor for classifying goods within this specific sub-heading.

It is crucial to distinguish this category from its siblings. HTS code 2610.00.00.20 applies to chromium ores and concentrates with a chromic oxide content *not exceeding* 40 percent, while 2610.00.00.60 is for those containing 46 percent or more chromic oxide. Therefore, the goods classified here fall within a specific, mid-range concentration of chromic oxide, differentiating them from lower or higher grade chromium-bearing ores and concentrates.

As this is a leaf node within the HTS structure, there are no further subdivisions. Classification within 2610.00.00.40 is definitive based on the stated chromic oxide percentage. Importers and exporters must rely on assay reports and product specifications to accurately determine the chromium content and ensure correct classification.