CONSTELLIUM AT A GLANCE

From Pechiney, Alusuisse and Alcan to Constellium: a long and rich experience in Aluminium More than a century of growth 1855 Pechiney January 2011 Rio Tinto sells 51% of Alcan Engineered Products to Apollo, 10% to FSI and keeps the remaining 39% stake 2000 Alcan Aluminium Limited merges with Algroup/ Alusuisse 1888 Alusuisse May 2011 Alcan Engineered Products is renamed to Constellium 2007 Rio Tinto acquires Alcan 2003 Alcan Inc. acquires Pechiney May 2013 Constellium commences trading on the New York Stock Exchange and NYSE Euronext Paris 1855: Creation of Henri Merle et Compagnie (renamed Pechiney in 1950) 1888: Creation of Aluminium Industrie Aktien Gesellschaft (AIAG) (renamed Alusuisse in 1963 and Algroup in 1988) 1902: The Northern Aluminum Company, Ltd is founded (renamed Aluminum Company of Canada Ltd in 1925) 1928: Aluminum Company of Canada, Ltd, becomes the subsidiary of Aluminium Limited, a holding company 1966: Aluminium Limited is renamed Alcan Aluminium Limited 1987: Alcan Aluminium Limited merges with its principal subsidiary, Aluminum Company of Canada, Limited, and uses the name Alcan Aluminium Limited 2000: Alcan Aluminium Limited merges with Algroup (Alusuisse Group Ltd) and the merged group is renamed Alcan Inc. in 2001 2003: Alcan Inc. acquires Pechiney 2007: Rio Tinto fully acquires Alcan, and announces its intentions to divest the Alcan Engineered Products business group 2011: Apollo acquires 51% of Alcan Engineered Products, FSI acquires 10%, and Rio Tinto retains the remaining 39% - Alcan Engineered Products is renamed Constellium 1902 Alcan January 2015 Constellium acquires Wise Metals 2

10,000+ employees Constellium is a leader in innovative aluminium-based solutions (2014 pro forma figures post acquisition of Wise Metals) €4.7+ billion in sales 23 manufacturing sites C-TEC, our world-class Technology Center Headquartered in Amsterdam, The Netherlands. Operational headquarters in Paris, France, Zurich, Switzerland and New York, USA 3

Constellium serves blue-chip customers Aerospace Packaging Automotive 4