A recent study focuses on Brazil's potential to become a global leader in supplying renewable marine fuels for the international shipping sector, leveraging the country's renewable energy resources and strategic geographic location. The analysis identifies six candidate ports, including both public and private ports, with high readiness to support the production, bunkering, and deployment of renewable hydrogen, ammonia, and methanol. The study assesses the feasibility of using these renewable fuels on major shipping routes and estimates the fuel and energy demand, showcasing the potential for zero-emission shipping in Brazil. By quantifying bunkering demand and evaluating port readiness, the research aims to guide future investments and policy initiatives towards the decarbonization of maritime shipping, highlighting the economic and environmental benefits of such a transition.