In an era where sustainability and circularity are becoming increasingly crucial, the aluminium industry is undergoing a significant transformation. At the forefront of this change is the RecAL project, which is pioneering innovative approaches to digital traceability in aluminium recycling and reuse. The creation of a Digital Product Passport (DPP), underpinned by blockchain technology, is one of the most exciting innovations behind the RecAL Hub.
A New Paradigm
A Digital Product Passport serves as a comprehensive, dynamic repository of information that tracks a product’s entire lifecycle. From the raw materials used in its creation to the various processes it undergoes, and even its compliance with relevant standards, theoretical DPPs can capture it all. By leveraging blockchain technology, this passport ensures unprecedented levels of data transparency and immutability, allowing stakeholders to trace the journey of aluminium from its origins as scrap to its final form as a finished product.
The RecAL project has already made progress in defining the requirements for a robust DPP system tailored specifically to the unique challenges faced by the aluminium recycling sector. This system is built upon the Hyperledger Fabric blockchain framework, chosen for its ability to provide secure data storage and sharing capabilities. Moreover, the proposed DPP aligns closely with the use cases outlined in the Ecodesign for Sustainable Products Regulation (ESPR), ensuring its relevance and applicability in the current regulatory landscape.
One of the key achievements has been successful collaboration with industry, particularly RecAL consortium partner ALUMIL, a major player in the aluminium supply chain. This partnership has been instrumental in identifying specific data needs and operational workflows, ensuring that the DPP will not just be a theoretical concept but a practical tool that reflects real-world applications and priorities.
Above: The RecAL Team at AIT, Vienna
The RecAL team have also made substantial progress in developing and validating use cases for the DPP. By conducting a thorough analysis of the aluminium value chain, they are shaping the first version of the DPP to cater specifically to these industries. This targeted approach ensures that the passport system addresses the unique challenges and requirements of each sector.
The introduction of the Digital Product Passport is set to revolutionize the aluminium industry’s approach to sustainability and circularity. By offering enhanced traceability, the DPP allows stakeholders and consumers to track aluminium throughout its lifecycle, ensuring immutability (and preventing fraud) at every stage. This level of transparency not only builds trust but also encourages responsible practices across the supply chain.
Furthermore, the DPP’s alignment with regulatory requirements, particularly those outlined in the ESPR, ensures that recycled aluminium meets stringent environmental standards. This regulatory compliance is becoming increasingly important as governments and consumers alike demand more sustainable practices from industries.
Collaboration remains at the heart of the project’s future plans. The team is committed to working closely with industry leaders to further refine the DPP’s design and usability. This collaborative approach will ensure that the final product meets the needs of all stakeholders in the aluminium recycling ecosystem.
By late 2025, the goal is to have evolved the DPP into a fully deployable tool. As part of this process, the RecAL team plans to publish insights and results from their ongoing work, contributing valuable knowledge to the wider industry and academic community.

Conclusion: A Game-Changer for Sustainable Aluminium
The development of Digital Product Passports represents a significant leap forward for the aluminium supply chain. By combining advanced digital technologies with a steadfast commitment to sustainability, the DPP is set to play a crucial role in enabling the functioning of RecAL’s Hub – a central component of the project’s vision for a circular aluminium economy.
This innovative approach fosters collaboration, transparency, and innovation across the industry. As the DPP system matures and is adopted more widely, it has the potential to set new standards for traceable, circular aluminium production. The journey towards a more sustainable and transparent aluminium industry is well underway, and the Digital Product Passport is leading the charge, promising a future where every piece of aluminium can be traced, verified, and recycled with unprecedented efficiency and accountability.