As global logistics becomes increasingly complex, supply chain automation has become a key aspect in improving operational efficiency and transparency. Blockchain technology presents itself as a viable option, providing the potential for transformative advancements in supply chain management without a central authority through decentralization, transparency, and immutability. This study emphasizes the importance of effective governance for blockchain-based supply chain consortia, aiming to identify governance requirements (GR) for a decentralized supply chain environment. In this article, we use a mixed-method approach, including a structured literature review, expert interviews (n=13), and a two-sided evaluation strategy involving a focus group (n=5) and a survey (n=199) to derive 24 GR from the provider and user perspectives. These GRs lay the foundation for developing governance strategies within decentralized blockchain consortia in supply chains, addressing aspects such as roles, rules, incentives, structures, and decision-making processes, offering valuable insights to researchers and practitioners.