Constellium Facilities Impacted by Severe Flooding in Chippis and Sierre Form 6 K

Constellium Facilities Impacted by Severe Flooding in Chippis and Sierre

Paris - Constellium SE (NYSE: CSTM) announced today that its facilities in Sierre and Chippis in Switzerland were impacted by exceptional flooding from the Rhone River. All operations are currently suspended. We are 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. We are committed to restart production in both facilities as soon as we can safely and efficiently do so.

In the meantime, we are working with our customers and suppliers to identify mitigation plans during this unprecedented time, optimizing all capacity available within Constellium's industrial platform.

Constellium will share further updates as more information becomes available.

About Constellium

Constellium (NYSE: CSTM) is a global sector leader that develops innovative, value-added aluminium products for a broad scope of markets and applications, including aerospace, automotive and packaging. Constellium generated €7.2 billion of revenue in 2023.

www.constellium.com

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Forward-looking statements

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