In order to apply the concept of corporate citizenship to corporate strategies and activities, companies should comprehensively grasp the environment and society. Focusing on five social issues in Korea—population mix, income gap, youth unemployment, environmental impact, and energy mix—and their direct and indirect impacts on society, steel companies might be able to get insight. The five socials issues do not operate independently within a given area, but operate dynamically through systematic interaction. As an example for a wider perspective, five pressing issues in South Korean society and their causal relations may serve as a rough sketch for developing corporate citizenship strategies and activities for the steel industry in the future.