The company was split as a result of the Alsace-Lorraine region becoming part of Germany after that countries victory in the Franco-Prussian War in 1870.
Usinor |
The Institut de recherche de la sidérurgie (IRSID) is the old name of ArcelorMittal Maizières Research SA, a private research center related to the siderurgical society ArcelorMittal (originally (Usinor, then Arcelor)), situated at Maizières-lès-Metz, in Lorraine.