2508 Clays, andalusite, kyanite and sillimanite, whether or not calcined, mullite, chamotte or dinas earths (excl. kaolin and other kaolinic clays, and expanded clay)

2508 (01/1988-..) Clays, andalusite, kyanite and sillimanite, whether or not calcined, mullite, chamotte or dinas earths (excl. kaolin and other kaolinic clays, and expanded clay) 25081000 (01/1988-..) Bentonite 25082000 (01/1988-12/2006) Decolourising earths and fuller's earth 25083000 (01/1988-..) Fireclay (excl. kaolin and other kaolinic clays and expanded clay) 25084000 (01/2007-..) Clays (excl. fireclay, bentonite, kaolin and other kaolinic clays and expanded clay) 25085000 (01/1988-..) Andalusite, kyanite and sillimanite 25086000 (01/1988-..) Mullite 25087000 (01/2004-..) Chamotte or dinas earths 25087010 (01/1994-12/2003) Chamotte earth 25087090 (01/1994-12/2003) Dinas earth