Therefore, the highest mentioned collection rates indicate that these countries probably collect all or most of the e-waste, and outperform other countries in the world where collection rates are much lower. This includes metal scrap traders, recyclers operating outside the producer compliance programs, refurbishers, and second-hand shops to register volumes. Here, the ProSUM project aims to prospect the amounts, concentrations, and presence of key components, materials, and vital elements to the electronics industry over time.