This research is focused on adopting smart contracts in the administration of port concessions in Angola, focusing on the Landlord Port model. The analysis is conducted from academic, managerial, and technological vantage points, emphasising the potential for blockchain-enabled automation to augment sustainable supply chain management practices. The main objective is to identify the scope of benefits that arise from integrating advanced technologies within the realm of port operations. Smart contracts are valuable tools to support a management process, helping to lower transaction costs, minimise contractual risks, and promote data-driven decision-making. The study also approaches the Angolan legal framework to demonstrate that recognising electronic contracts and information and communication technology policies provides a foundation for adopting smart contracts, even without specific regulations. This study employs a hermeneutic-deductive methodology and bibliographic analysis to illustrate how smart contracts can improve transparency, accountability, and efficiency in concession governance. By focusing on Angola as a case study, this research contributes to the global discussion on the digital transformation of supply chains and the role of blockchain in promoting sustainable port management.