The Stakeholders’ Advisory Board (SAB), managed and moderated by PROSPEX, is composed of outstanding (European, and extra European) scientists and stakeholders from the whole value chain of the plastic market. They provide knowledge from their skills and expertise in the sustainable management and disposal of the EoL plastics and derivatives, more generally in the circular economy and recycling, carbon footprint. SAB acts with a consultancy and advisory function, being part of the CIMPA strategy orienting the activities toward the real needs of stakeholders related to the Project issues.