Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
Andalusite, kyanite and sillimanite
Bentonite
Chamotte or dinas earths
Fireclay (excl. kaolin and other kaolinic clays and expanded clay)
Mullite
Clays (excl. fireclay, bentonite, kaolin and other kaolinic clays and expanded clay)