2713.12.00.00 - Calcined

This HTS category, 2713.12.00.00, specifically covers petroleum coke that has undergone a calcination process. Calcination is a thermal treatment applied to petroleum coke at high temperatures to remove volatile matter and improve its electrical conductivity and structural integrity. The resulting product is a dense, carbonaceous material used primarily in the aluminum smelting industry as anodes, and also in the steel industry for recarburization.

This classification is distinguished from its sibling category, 2713.11.00.00 ("Not calcined"), by the crucial process of calcination. While both are forms of petroleum coke derived from crude oil refining residues, calcined petroleum coke has been deliberately heat-treated to achieve specific properties essential for its industrial applications, whereas non-calcined petroleum coke retains higher levels of volatile compounds and is less dense.

As this is a leaf node in the HTS classification system, there are no further subcategories. The defining characteristic for classification within this code is solely the calcined state of the petroleum coke. Importers and exporters should ensure that the product's processing history and physical properties align with the definition of calcined petroleum coke to ensure accurate declaration.