Proxy Statement — pages 102-27 Collective knowledge of highest governance body 2018 Proxy Statement — pages 6-7 102-28 Evaluating the highest governance body’s performance 2018 Proxy Statement — pages 18-19 102-29 Identifying and managing economic, environmental, and social impacts Corporate Social Responsibility at CF 102-30 Effectiveness of risk management process Corporate Social Responsibility at CF; 2018 Proxy Statement — page 20 102-31 Review frequency of economic, environmental, and social topics Corporate Social Responsibility at CF 102-32 Highest governance body’s role in sustainability reporting A copy of the sustainability report is provided to the Board of Directors in advance of its annual publication so that they may provide input.