Constellium SE Announces Start-Up of New Finishing Lines at Singen Plant for High-Quality Aluminum Foilstock Production

PARIS, Dec. 03, 2025 (GLOBE NEWSWIRE) -- Constellium SE (NYSE: CSTM) today announced the successful start-up and inauguration of its new finishing lines at its Singen plant in Germany . This milestone marks the completion of the €30 million investment announced in 2024 in partnership with Lotte Infracell, a subsidiary of Lotte Aluminium, to supply high-quality aluminum foilstock for battery applications in Europe.

The project was executed safely, on schedule and on budget. Construction of the new building was completed in April 2025, followed by the installation and commissioning of equipment. In November 2025, the Singen team successfully produced the first coil for qualification with Lotte Infracell, marking the official start of production.

“The start-up of the new finishing lines represents a major achievement for our Singen team and a significant step forward in expanding our production capabilities,” said Matthew Perkins, Business Unit President, Packaging & Automotive Rolled Products. “This investment highlights our ongoing commitment to operational excellence, innovation, and meeting the evolving needs of our customers across the aluminum industry.”

The new facility features state-of-the-art edge trimming and packing lines, supported by dedicated logistics and buffer areas that optimize production flow and material handling. The line processes dimensions up to 2,000 mm widths and 1.3 mm thicknesses. It can handle aluminum coils for different market segments with high productivity.

The installation of a solar power system is expected to generate approximately 760,000 kWh of renewable energy each year, reducing the site’s carbon footprint. The building is also equipped with a fire protection wall separating it from existing facilities and a sprinkler system covering both production and truck loading areas, reflecting Constellium’s strong focus on safety.

“This new capacity reinforces Constellium’s strategic role in supporting the transition to e-mobility and sustainable energy applications,” stated Bernd Honsel, Plant Director Constellium Rolled Products Singen. “This investment strengthens Singen’s position as a center of excellence for high-performance aluminum products,” he continued.

About Constellium

Constellium (NYSE: CSTM) is a global sector leader that develops innovative, value-added aluminum products for a broad scope of markets and applications, including aerospace, packaging and automotive. Constellium generated $7.3 billion of revenue in 2024.
www.constellium.com

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