The report by the Global Maritime Forum and RMI focuses on the pivotal role of the maritime sector in transitioning to a low-carbon economy by adopting low-and zero-emission fuels. It emphasizes the necessity for the maritime industry to shift towards green methanol and ammonia to reduce global greenhouse gas emissions. The report delves into the significance of ports becoming pioneers in providing sustainable bunkering solutions derived from green hydrogen. By analyzing the cost-effectiveness and supply patterns of green methanol and ammonia, the report highlights the potential for extensive trade networks between production centers and major ports. Additionally, it stresses the importance of policy in influencing a country or region's position in the evolving hydrogen economy. The study categorizes ports into four archetypes, each with specific opportunities, challenges, and actions needed to develop green methanol or ammonia bunkering facilities. Drawing insights from leading ports worldwide, such as Singapore and Rotterdam, the report offers tailored recommendations to aid ports in leading the decarbonization efforts of the maritime industry.