In order to solve environmental pollution problems caused by waste plastics, and to reduce CO2 and eliminate fossil resources in the chemical industry, it is indispensable to realize highly recycling-oriented societies and to make use of alternative resources. This session introduces strategic initiatives for recycling of difficult-to-recycle plastics through chemical recycling, utilization of plant resources such as bioplastics, and recycling of CO2 emission, and this session discusses the path to the plastic supply chain toward 2050.