This Report presents the recommendations arising from the ProSUM Project. It contains recommendations designed to continue to improve the knowledge base for secondary raw materials with the overarching objective of increasing recycling and supply of such materials. It specifically addresses data availability, data quality, data harmonisation, data structure and data presentation. The report contains a complete list of recommendations arising from the work undertaken in the project covering the ‘urban mine’ of electrical and electronic equipment, batteries and vehicles, their wastes, and mining wastes.