Silicon carbide (SiC) was discovered by chance in 1891 by the American Acheson in his attempts to make artificial diamond. Unlike many alchemists who preceded him, his efforts were not entirely without result. During his experiments, dark, irregular crystals were formed with a hardness only matched by diamond and boron carbide.

  • 2021

    Restart of TopSiC® production in Delfzijl

  • 2015

    ESD earns first ISO:50001:2011 energy management certification

  • 2012

    New steam boiler was installed in power plant

  • 2012

    ESD earns first ISO:14001-2004 environmental management certification

  • 2009

    Acquisition of ESD-SIC bv by REF-Prosessing GmbH

  • 2001

    Acquisition of ESD by Dr. Fritz Petersen and separation from Wacker Chemie

  • 1995

    Construction of water treatment plant in Delfzijl

  • 1994

    ESD earns first ISO:9001-2008 quality management certification

  • 1990

    Construction of desulphurization plant in Delfzijl

  • 1981

    Energy recovery plant in Delfzijl – utilization of process gases

  • 1973

    Start of SiC production in Delfzijl and founding of Elektroschmelzwerks Delfzijl bv (ESD)

  • 1972 - 1974

    Development of new SiC technology in Delfzijl (The Netherlands)

  • 1952

    Start of SiC-production at ESK in Frechen

  • 1933

    Purchase of ESK by Wacker Chemie

  • 1925

    ESK starts production of SiC in Kempten

  • 1922

    Founding of Elektroschmelzwerk Kempten AG (ESK)

  • 1891

    Discovery of SiC by Acheson