History at a glance
Ilseder Hütte AG
1858 | The “Actien-Gesellschaft Ilseder Hütte” was founded in Groß Ilsede in the Kingdom of Hanover to exploit the local ore deposits |
1860 | Ore mining began and the first blast furnace was commissioned |
1871 | The company commissioned its first coking plant |
1880 | Acquisition of the “Aktien-Gesellschaft Peiner Walzwerk” (founded 1872 to convert llseder pig iron into steel and rolled products) |
1920/21 | The company became partly self-sufficient in coal with the acquisition of mines |
1937 | Part of Ilseder Hütte’s ore reserves were forcibly appropriated by the new, state-owned “Reichswerke AG für Erzbergbau und Eisenhütten ‘Hermann Göring’” for the planned smelting plant in Salzgitter (construction began November 1937). Most were handed back after World War II. |
1941–1945 | From 1941, under wartime conditions, prisoners of war and forced labor were employed to maintain production. After a temporary halt at the end of the War, work gradually resumed from late 1945 onwards. |
Ab 1950 | Modernization and expansion of equipment and facilities at all plants |
1969 | Coal mining operations absorbed by Ruhrkohle AG |
Stahlwerke Peine-Salzgitter AG
1970 | The state-owned Salzgitter AG merged its Steel Division comprised mainly of the smelting plant in Salzgitter with Ilseder Hütte as part of an increase in capital and in return acquired a majority stake in Ilseder Hütte, which was renamed Stahlwerke Peine-Salzgitter AG |
1977/78 | Administration of Stahlwerke Peine-Salzgitter AG was centralized in Salzgitter, in the enlarged building housing the offices of group parent company Salzgitter AG |
1982 | Ore mining ceased |
1983 | Pig iron production ceased at the Ilsede plant |
1989/90 | The previously state-owned Salzgitter AG and thus also its subsidiary Stahlwerke Peine-Salzgitter AG were privatized with the sale of the business to Preussag AG |
Preussag Stahl AG
1992 | Stahlwerke Peine-Salzgitter AG was renamed Preussag Stahl AG |
1995 | Closure of the plant in Ilsede |
Salzgitter AG
1998 | Preussag Stahl AG was spun off from the Preussag Group as an independent unit that was renamed Salzgitter AG and floated on the stock market |
2000 | Acquisition of Mannesmannröhren-Werke AG |
2001 | Introduction of a new Group structure: Salzgitter AG became a management holding company with independent subsidiary operating companies arranged in divisions |
2007 | Acquisition of a majority interest in Klöckner-Werke AG |
2014 | Change in the company organization: The manufacturing group companies are assigned to business units. The service companies are either allocated to the business units of their largest clients or managed centrally by executive responsibilities |