| 1964 |
| Start-up in Koblenz (100% Kaiser) |
| 1970 |
| Change in ownership (50% Kaiser, 50% Preussag) |
|
1976 |
| Change in ownership (100% Kaiser Europe) |
| 1979 |
| Start-up aircraft-plate production |
|
1982 |
| Extension of plate production |
| 1987 |
| Change in ownership (100% Koninklijke Hoogovens) |
|
1991 |
|
Coil- and sheet expansion |
| 1992 - 1998 |
| extension of plate production and quality improvement programme |
|
1999 |
| Change in ownership (100% Corus Group) |
|
2000 |
| New business unit structure: Corus Aluminium Rolled Products consisting of Aleris Aluminum GmbH GmbH, Koblenz (Germany) as Headquarter and production plant and two additional production plants in Belgium and Canada: Corus Aluminium N.V., Duffel (Belgium) as well as Corus L.P., Cap-de-la-Madeleine (Canada). |