Constellium SE, together with its subsidiaries, engages in the design, manufacture, and sale of rolled and extruded aluminum products for the aerospace, packaging, automotive, commercial transportation, general industrial, and defense end-markets. The company operates through three segments: Packaging & Automotive Rolled Products, Aerospace & Transportation, and Automotive Structures & Industry. The Packaging & Automotive Rolled Products segment produces and develops rolled aluminum products, including canstock and closure stock for the beverage and food industry, as well as foil stock for the flexible packaging market. This segment also supplies automotive body sheets, heat exchangers, and battery foil products for the automotive market. The Aerospace & Transportation segment provides aluminum products including plate, sheet, and extrusions to aerospace, space, commercial transportation, general industrial, and defense sectors. The Automotive Structures & Industry segment offers structural solutions for the automotive industry including crash management systems, body structures, side impact beams, and battery enclosure components; soft and hard alloy extrusions for automotive, transportation, and general industrial applications; and profiles for rail and general industrial applications. This segment also provides downstream technology and services, which include pre-machining, surface treatment, research and development, and technical support services. It sells its products directly or through distributors in France, Germany, the Czech Republic, the United Kingdom, Switzerland, and the United States, as well as South Korea and China. The company was incorporated in 2010 and is headquartered in Paris, France.