PRIMUS activities will increase the resilience of EU's plastic value chains by securing supply of waste plastics as feedstock and increasing its availability through connecting value chain actors, developing methods to control quality, sampling, and analysis, and improving upgrading knowhow and characterize suitability towards added-value products. PRIMUS will prove legislative compliant, privacy-preserving, cost-efficient and feasible technological pathways for tapping into non-recycled or underutilized plastic waste streams. Validated business cases will lower the risks of future investments into European manufacturing capacity.