Organizations have been transforming their operations under the circularity scheme, leading to a series of changes to make the supply chain sustainable. In this chapter, various components of circularity in processes are described. Detailed information is presented on companies making efforts to develop or implement supply chains based on the circular economy, such as ports. In addition, the necessary certifications are discussed to achieve harmonization regarding electrification of vehicles and agreed to global principles aligned with the Paris Agreement to achieve decarbonization of the oceans.