Our project aims to implement Digital Product Passports (DPPs) to support a circular economy, focusing on translating the EU Green Deal legislation into practical applications for retailers in the HiFi audio equipment industry. To achieve this, we designed a user-friendly Digital Product Passport platform for retailers, enhancing customer retention and creating new revenue opportunities while promoting sustainable practices. We facilitated seamless information exchange in the supply chain to deliver value to different stakeholders, with the overarching goal of achieving a circular economy.