Constellium SE is an [2] American-Swiss, French-based global manufacturer of aluminium rolled products, extruded products, and structural parts based on a large variety of advanced alloys. Constellium's C-TEC research center has been credited for advancing technology in the field of advanced aluminium alloy.[3] Constellium primarily serves the aerospace, automotive, and packaging sectors. Large clients include Mercedes-Benz,[4] Audi,[5] BMW,[6] Fiat Chrysler Automotive