Sodium Aluminum Fluoride (Na3AlF6, Cryolite) from Japan

Sodium aluminum fluoride (Na3AlF6, cryolite) is a complex fluoride of aluminum and sodium, essential in the Hall-Héroult process. As a fluoroaluminate, it is a complex fluorine salt, not a simple fluoride, and is classified under 2826.90 (fluoroaluminates) rather than 2826.12.00. Therefore, it is excluded from this tariff item.