The strategic management of supply chains, by ensuring closed-loop manufacturing processes and a constant reduction of industrial waste, is an essential pillar of sustainability. This is the pattern behind the, so-called, circular supply chains. The effective adoption of this paradigm demands the supply chains actors to establish robust integration and relationships, so that waste and by‐products of an industry or industrial process become the raw materials for others. This circular network is defined as industrial symbiosis. Starting from a background on this topic, this working paper explores the potential of blockchain as enabling technology of Industry 4.0 to disseminate industrial symbiosis practices within the modern industrial scenario. A preliminary two-step framework, i.e., conceptual and operative, is presented including insights and win–win synergies showing the potential of blockchain technology in supporting informative flows of industrial symbiosis. Preliminary field experiences are suggested, along with existing limitations and perspectives on future research.

The pervasive integration of electronic technologies in the contemporary digital landscape underscores the significance of electrical and electronic equipment (EEE). Beyond their utility in daily life, certain components within EEE, hold classification as critical raw materials (CRMs) and transforms cities into urban mines. This issue highlights the necessity of optimizing its sustainable consumption and production patterns at all stages of the life cycle and across various sectors. The optimization of the complete product life cycle serves as a foundational pillar of the circular economy (CE). While the transition from a linear to a CE has been a longstanding objective promoted by the EU, a comprehensive mapping elucidating potential shortcoming in the effective implementation of this transition in Europe for the field of EEE remains elusive. This paper seeks to investigate the state-of-the-art of CE good practices for EEEs in Europe, shedding light on potential strengths and challenges to be addressed. To obtain an empirical perspective, the European Circular Economy Stakeholder Platform (ECESP) serves as a tool to delineate the trajectory of progress throughout the transition to a CE. The analysis encompasses both life cycle phases and the production sector. The findings underscore a prevailing focus on the product's end-of-life phase and sectors associated with recycling and waste management, while the initial life cycle phase remains underexplored in terms of eco-design solutions or innovative processes. On a positive note, several instances of new business models have emerged, redirecting consumption emphasis towards services.