Cutting-edge solutions 2017 About for our strategic end-markets Constellium is a global sector leader that Supported by our technology and innovation experts, and in develops innovative, value-added collaboration with our customers, we develop and provide products for a broad scope of markets and advanced aluminium alloys and cutting-edge technological Constellium solutions. Through our three business units, we anticipate applications, focusing in particular on and respond to the fast-evolving market needs. at a glance aerospace, automotive and packaging. AEROSPACE AND TRANSPORTATION provides technologically-advanced aluminium alloys with wide applications across the global aerospace, transportation, industry and defense sectors. The business unit offers a wide range of products including plates, sheets and extrusions which allow Constellium to provide tailored solutions, pre-machining and other added value services to its customers.

PACKAGING AND AUTOMOTIVE ROLLED PRODUCTS provides aluminium Constellium milestones sheets and coils for packaging applications (beverage and food cans, closures, foils) as well as automotive solutions, including high-performance products 2011 for Auto-Body Sheet and heat exchangers. In addition, the business unit 2003 divests 2015 recycles end-of-life products, such as used beverage cans. Alcan EP Constellium acquires Alcan EP becomes acquires AUTOMOTIVE STRUCTURES AND INDUSTRY produces advanced solutions Constellium Wise Metals for the global automotive industry, including Crash Management Systems (CMS) and other structural and safety parts and extrusions. 1999 2007 2013 This business unit also manufactures large profi les mainly for road Alcan Rio Tinto Constellium commences and rail transportation, energy and other industrial applications. acquires acquires trading on the New York Constellium complements this product range with a comprehensive Alusuisse Alcan Stock Exchange and NYSE Euronext offering of downstream technology and services, including pre-machining, surface treatment and logistic support services.

www.constellium.com

Coordination: Corporate Communications Department Communications Corporate Coordination: Concept, design and production: All Contents Printing: Allegra (United States) & PDI (rest of the world) Photo credits: Hubert Raguet, Candace Williams Ideas. Materialized. Cutting-edge solutions A leader in aluminium-based 2017 About Constellium for our strategic end-markets performance products Constellium is a global sector leader that Supported by our technology and innovation experts, and in A global leader in aluminium transformation, Constellium develops innovative, value-added aluminium collaboration with our customers, we develop and provide designs and manufactures innovative and high value-added products for a broad scope of markets and advanced aluminium alloys and cutting-edge technological aluminium products and services. Constellium solutions. Through our three business units, we anticipate applications, focusing in particular on and respond to the fast-evolving market needs. #1 worldwide for aerospace plates aerospace, automotive and packaging. #1 worldwide in closure stock #1 in North America for wide coils at a glance AEROSPACE AND TRANSPORTATION provides technologically-advanced #1 in Europe for large profi les aluminium alloys with wide applications across the global aerospace, #2 in Europe for hard alloy extrusions transportation, industry and defense sectors. The business unit offers #2 worldwide in Crash Management Systems (CMS) a wide range of products including plates, sheets and extrusions #2 shared in Europe in Auto-Body Sheet which allow Constellium to provide tailored solutions, pre-machining #2 in Europe for can body stock and other added value services to its customers. #3 in North America for can body stock

PACKAGING AND AUTOMOTIVE ROLLED PRODUCTS provides aluminium Constellium milestones sheets and coils for packaging applications (beverage and food cans, closures, foils) as well as automotive solutions, including high-performance products 2011 for Auto-Body Sheet and heat exchangers. In addition, the business unit 2003 Rio Tinto divests 2015 recycles end-of-life products, such as used beverage cans. Alcan Alcan EP Constellium acquires Alcan EP becomes acquires AUTOMOTIVE STRUCTURES AND INDUSTRY produces advanced solutions Pechiney Constellium Wise Metals for the global automotive industry, including Crash Management Systems (CMS) and other structural and safety parts and extrusions. 1999 2007 2013 This business unit also manufactures large profi les mainly for road Alcan Rio Tinto Constellium commences and rail transportation, energy and other industrial applications. acquires acquires trading on the New York Constellium complements this product range with a comprehensive Alusuisse Alcan Stock Exchange and NYSE Euronext Paris offering of downstream technology and services, including pre-machining, surface treatment and logistic support services. An ambitious strategy We have four key pillars:

focus on Environment, Health & Safety (EHS), which is one of Constellium’s core value commitments at all levels of the organization. Signifi cant improvements have been recorded on the road to zero accidents;

focus on selected strategic end-markets : aerospace, automotive, and packaging; selectively expanding our global footprint in these markets;

create product leadership, based on innovative technologies that are differentiating. We are working to achieve this by drawing not only on our world-class R&T capabilities, both in Europe and in the US, but also on our scientifi c council’s unique expertise and our network of partnerships with leading universities and research facilities;

achieve excellence in customer service and in all our operations through the fl awless, rigorous and decisive execution of our Manufacturing Excellence program. Coordination: Corporate Communications Department Communications Corporate Coordination: Concept, design and production: All Contents Printing: Allegra (United States) & PDI (rest of the world) Photo credits: Hubert Raguet, Candace Williams Ideas. Materialized. A leader in aluminium-based Key fi gures 2016 R&T and innovation performance products At Constellium, aluminium is more than a metal. It is the material that takes the shape of our ideas – so that A global leader in aluminium transformation, Constellium Adjusted EBITDA* €m our ideas may shape the world. With C-TEC, our world-class designs and manufactures innovative and high value-added Constellium Technology Center, we co-create solutions aluminium products and services. with customers, keeping a constant focus on reducing Revenue 377 time-to-market. #1 worldwide for aerospace plates 343 21% #1 worldwide in closure stock €4.7 Bn 275 Unique R&T competencies at Constellium Technology Center #1 in North America for wide coils Cutting-edge technologies (Airware®, Surfalex®, Dokima®, etc.); #1 in Europe for large profi les Opening of a new R&T hub in the US; #2 in Europe for hard alloy extrusions 52% Partnership with approximately 50 universities and laboratories. #2 worldwide in Crash Management Systems (CMS) Revenue by business unit 27% #2 shared in Europe in Auto-Body Sheet Accelerated development of high-performance proprietary alloys, Packaging and Automotive Rolled Products advanced technologies and aluminium-based solutions for our customers #2 in Europe for can body stock 2014 2015** 2016 #3 in North America for can body stock Aerospace and Transportation Gated innovation process enabling quick decisions and set of tools Automotive Structures and Industry to strongly improve effi ciency of research activities; * Adjusted EBITDA is a “Non-GAAP measure”. For a reconciliation of this measure to “Net Income”, see the reconciliation in our publically fi led earnings press release for Q4 2016. Unique rapid prototyping capabilities, simulation tools and advanced **Includes Wise Metals’ sales from the date of acquisition, which occurred on January 5, 2015 joining technologies such as friction stir welding; Approximately 180 active patent families and trademarks.

Full-time employees* International Scientifi c Council Gathers several of the world’s top materials scientists to strengthen the company’s technical leadership and innovation performance; Provides recommendations on Constellium’s R&T competencies, innovation Approx. 11,000 approach, critical R&T collaborations worldwide, key future science and

*Permanent and fi xed-term employees technology trends and on enriching the company’s scientifi c network. 2% 7% 7% FTE by geographic zone

France 38% USA 21% Germany

An ambitious strategy Switzerland A global network of production facilities, technology center and offi ces Our commitment to Eastern Europe We have four key pillars: 25% serving our customers all around the world Asia We are committed to pursuing the highest standards of governance focus on Environment, Health & Safety (EHS), which is one of Constellium’s of our activities in line with the group’s values; core value commitments at all levels of the organization. Signifi cant improvements have been recorded on the road to zero accidents; We are committed to ensuring our people are safe, skilled, motivated and involved; focus on selected strategic end-markets : aerospace, automotive, and packaging; selectively expanding our global footprint in these markets; We are committed to minimizing the environmental impact of all our operations in terms of energy, waste and water; create product leadership, based on innovative technologies that are differentiating. We are working to achieve this by drawing not only on We are committed to developing, producing and selling sustainable our world-class R&T capabilities, both in Europe and in the US, but also products that meet our customer needs now and in the future. on our scientifi c council’s unique expertise and our network of partnerships with leading universities and research facilities;

achieve excellence in customer service and in all our operations through the fl awless, rigorous and decisive execution of our Manufacturing Excellence program. Cutting-edge solutions R&T and innovation 2017 About Constellium for our strategic end-markets At Constellium, aluminium is more than a metal. Constellium is a global sector leader that It is the material that takes the shape of our ideas – so that Supported by our technology and innovation experts, and in our ideas may shape the world. With C-TEC, our world-class develops innovative, value-added aluminium collaboration with our customers, we develop and provide Constellium Technology Center, we co-create solutions products for a broad scope of markets and advanced aluminium alloys and cutting-edge technological with customers, keeping a constant focus on reducing Constellium applications, focusing in particular on solutions. Through our three business units, we anticipate time-to-market. and respond to the fast-evolving market needs. aerospace, automotive and packaging. Unique R&T competencies at Constellium Technology Center Cutting-edge technologies (Airware®, Surfalex®, Dokima®, etc.); at a glance AEROSPACE AND TRANSPORTATION provides technologically-advanced Opening of a new R&T hub in the US; aluminium alloys with wide applications across the global aerospace, Partnership with approximately 50 universities and laboratories. transportation, industry and defense sectors. The business unit offers Accelerated development of high-performance proprietary alloys, a wide range of products including plates, sheets and extrusions advanced technologies and aluminium-based solutions for our customers which allow Constellium to provide tailored solutions, pre-machining Gated innovation process enabling quick decisions and set of tools and other added value services to its customers. to strongly improve effi ciency of research activities; Unique rapid prototyping capabilities, simulation tools and advanced PACKAGING AND AUTOMOTIVE ROLLED PRODUCTS provides aluminium joining technologies such as friction stir welding; Constellium milestones sheets and coils for packaging applications (beverage and food cans, closures, Approximately 180 active patent families and trademarks. foils) as well as automotive solutions, including high-performance products 2011 International Scientifi c Council for Auto-Body Sheet and heat exchangers. In addition, the business unit 2003 Rio Tinto divests 2015 recycles end-of-life products, such as used beverage cans. Gathers several of the world’s top materials scientists to strengthen Alcan Alcan EP Constellium the company’s technical leadership and innovation performance; acquires Alcan EP becomes acquires Provides recommendations on Constellium’s R&T competencies, innovation Pechiney Constellium Wise Metals AUTOMOTIVE STRUCTURES AND INDUSTRY produces advanced solutions approach, critical R&T collaborations worldwide, key future science and for the global automotive industry, including Crash Management technology trends and on enriching the company’s scientifi c network. Systems (CMS) and other structural and safety parts and extrusions. 1999 2007 2013 This business unit also manufactures large profi les mainly for road Alcan Rio Tinto Constellium commences and rail transportation, energy and other industrial applications. acquires acquires trading on the New York Constellium complements this product range with a comprehensive Alusuisse Alcan Stock Exchange and NYSE Euronext Paris offering of downstream technology and services, including pre-machining, surface treatment and logistic support services. Our commitment to sustainability

We are committed to pursuing the highest standards of governance of our activities in line with the group’s values;

We are committed to ensuring our people are safe, skilled, motivated and involved;

We are committed to minimizing the environmental impact of all our operations in terms of energy, waste and water;

We are committed to developing, producing and selling sustainable products that meet our customer needs now and in the future.

Ideas. Materialized.