History
| 1728 | The first mill is established. It produces jewellery, bowls, etc. In the following years a French cannon founder is given permission to build a cannon foundry but it is only after King Frederik V asks his chancellery adviser Johan F. Classens to take over that the foundry blossoms as well as the town around it. |
| 1756 | King Frederik issues a document permitting to call the town Friederichswerk. |
| 1761 | The construction of a new ammunition mill begins, Gjethuset, and right up to 1976 is used for heavy industry. |
| 1940 | Det Danske Stålvalseværk A/S (DDS) is established and produces profiles for the construction industry and plates for the shipping industry. |
| 1965 | Kontiværket is established as part of DDS. It employs 1600 workers. King Frederik IX visits the mill to celebrate its 25th anniversary. |
| 2006 | Duferco acquires “Kontiværket” (bar mill) and establishes Duferco Danish Steel A/S. Production restarts at the end of June with flats, rounds and squares. |
| 2008 | With the new investments in place, Duferco Danish Steel A/S will add the new mix of products and will increase tonnage volume compared to 2007. |