1913
Siemens acquires ceramics plant Neuhaus-Schierschnitz
1950
ceramics insulator plant Redwitz founded
1970
production of aluminium oxide ceramics launched
1979
production of piezo ceramics launched
1987
production of SINOx® catalysts launched
1990
sales site in Alpharetta, Georgia (USA) opened
1995
production of SIMOTEC®-insulators launched
1998
Siemens Fabyka Izolatorow SP. Z. o.o., Jedlina Zdroj - production of medium and low voltage insulators in Poland
2002
spin-off of branch out of Siemens AG und sale of Ceramics GmbH to Kohlberg Kravis Roberts & Co. (KKR)
2003
launch of Argillon
2004
Argillon has taken over the shares majority of IZOCER, Turda ( Rumania ).
2007
In December 2007 Demag Holding S.Ã r.l., Luxemburg, via its subsidiary Ceramics Luxembourg 2(f) S.Ã r.l., signed a binding contract regarding the sale of the Argillon Group to Johnson Matthey plc
2008
Cartel office approves the sale of the Argillon Group - takeover by Johnson Matthey is completed