| 1974 |
Metalcolour A/S is founded. |
| 1989 |
The Finnish steel concern, Rautaruukki OY, köper Metalcolour A/S. |
| 1997 |
Metalcolour A/S is once again in Danish hands when AT Holding achieves a shareholding majority. |
| 2009 |
Metalcolour A/S acquires the Swedish company SSAB Laminated Steel, which receives the name Metalcolour Sverige AB. |