See pages Report for more, available at https://www.constellium.com/sites/default/ files/constellium_business_and_sustainability_report_2017-200718.pdf 40-41 102-47 List of material topics Using materiality assessments to build action plans See pages 38-39 of our 2017 Business and Sustainability Performance Report for more, available at https://www.constellium.com/sites/default/ files/constellium_business_and_sustainability_report_2017-200718.pdf 40-41 102-48 Restatements of information Past energy and GHG data were amended to account for identified reporting errors and to reflect a revision of emission factors.