Development of strategies for model-based design in the research of processes and related materials aimed at realizing a society that can continue to maintain economic development (circular economy) while being conscious of environmental improvement (climate change countermeasures, etc.) is required. In this symposium, we call research presentations on the latest experimental analysis and simulation applications in the development and design of environmental processes and materials, so as to discuss the promotion of social implementation of development processes and materials from the perspective of systems approach.