This study deals with the problem of collaborative maritime transportation between manufactured export industries and maritime carriers as well as its relationships polices applied to the Brazilian case. The general maritime exportation mechanism is very comprehensive and complex with several variables (volumes, capacity of the ships, prices, maritime fees) and agents such as industries and carriers. To understand the patterns of transition from the system and its long-term behaviour, the System Dynamics’ approach is presented in order to start modelling the problem. This method allows improving the analysis of the global behaviour of the export network. For further implementation, some recommendations are given.