Vanadium Bearing Catalyst Residue from United States

Vanadium bearing catalyst residue is a spent catalyst residue containing vanadium from chemical processing, not further treated or refined. It is a residue containing metals, used for metal extraction or chemical compound manufacture, as covered by heading 26.20. The residue is unprocessed and not treated for copper, lead, or zinc recovery, so it falls under 2620.99.00.