Constellium SE announced that its facilities in Sierre and Chippis in Switzerland were impacted by exceptional flooding from the Rhone River. All operations are currently suspended. Company is relieved to report that all employees are safe.

Constellium cannot assess at this point the extent of the damage or determine when production will restart, as cleaning operations have just started with the support of local authorities. Company iscommitted to restart production in both facilities as soon as we can safely and efficiently do so. In the meantime, Company is working withrcustomers and suppliers to identify mitigation plans during this unprecedented time, optimizing all capacity available within Constellium?s industrial platform.