Dr.-Ing. Alexandra Pehlken studied Mining Engineering at RWTH Aachen University, specializing in mineral processing. She received the Lise-Meitner Scholarship from the State of North Rhine Westfalia and spent two years in Canada. She has headed the BMBF-funded "Cascade Use" research group at the Carl von Ossietzky University of Oldenburg and is now working for OFFIS.Dr. Matthias Kalverkamp is a Post-Doc researcher in the "Cascade Use" research group and focuses on remanufacturing supply chains in the context of the circular economy. During his PhD studies, he conducted research in Europe, North America and Chile. Prior to that, he worked in project management at the BIBA - Bremer Institut für Produktion und Logistik GmbH.Rikka Wittstock studied Sustainability Economics and Management at the Carl von Ossietzky University of Oldenburg and completed her master thesis within the framework of the "Cascade Use" project, focusing on fuel cell vehicles and their impact on platinum demand. She is currently a PhD student at the University of Osnabrueck.