Constellium SE completed the inauguration of its new finishing lines at the Singen plant in Germany on December 3, 2025, marking the culmination of a €30 million investment announced in 2024 in partnership with Lotte Infracell, a subsidiary of Lotte Aluminium.
The new lines can process aluminum coils up to 2,000 mm wide and 1.3 mm thick, expanding the plant’s capacity to supply high‑quality foilstock for battery applications across Europe. The installation includes advanced edge‑trimming and packing equipment, dedicated logistics and buffer zones, and a solar power system that will generate roughly 760,000 kWh of renewable energy each year, further reducing the site’s carbon footprint.
The expansion comes at a time when Constellium’s financial performance has been on an upward trajectory. In the third quarter of 2025 the company reported revenue of $2.2 billion, up 20 % year‑over‑year, and net income of $88 million, a dramatic increase from $8 million in the same quarter a year earlier. Adjusted EBITDA rose to $235 million, and management raised its full‑year 2025 guidance for adjusted EBITDA to $670–$690 million, reflecting confidence in continued demand for high‑margin e‑mobility products.
CEO Jean‑Marc Germain said the Singen expansion aligns with Constellium’s strategy of focusing on specialized, high‑margin segments such as automotive and aerospace. He highlighted the company’s disciplined cost management and its commitment to investing in technologies that support the growing electric‑vehicle battery market, noting that the new capacity will help meet the rising demand for lightweight, conductive, and cost‑effective aluminum foils.
The inauguration reinforced the positive market reaction to Constellium’s recent earnings. Investors welcomed the company’s earnings beat and guidance upgrade, and the new production lines are seen as a tangible step toward sustaining the company’s growth trajectory and strengthening its competitive position in the battery‑foil market.
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