This paper examines the influence of the Digital Twin paradigm on the concrete industry context that the Hamburg Port Authority operates in. In cooperation with the practitioner, we develop architectural extensions for a maturing Enterprise Architecture in the context of Internet of Things in the maritime logistics industry. We derive formalized learnings in the form of a Digital Twin metamodel and an architectural view that builds upon the SmartBrick paradigm from EA research, and introduces a Digital Twin layer to leverage the benefits of SmartBricks in strategic management of IoT cloud architectures.