Countries in the Asia-Pacific and Africa regions are emerging as key players in the global hydrogen economy. While opportunities abound for green hydrogen production, challenges like high costs and financing obstacles need to be overcome to scale up production and distribution. The maritime industry, with ambitious net-zero goals, is poised to stimulate investments in green hydrogen supply chains within and across regions. The importance of a regional approach to hydrogen fuel is highlighted, emphasizing the need for collaboration among nations to tap into market opportunities and support the decarbonization of the shipping sector. Initiatives like the Maritime Fuel Supply Dialogues bring together stakeholders to address investment barriers and foster regional cooperation. As the demand for green energy grows, policymakers are urged to consider the wider impacts of transitioning to alternative fuels. By working with key stakeholders, countries can build a robust regional fuel supply chain that not only supports decarbonization but also accelerates the adoption of other sustainable energy sources. Hydrogen plays a pivotal role in maritime decarbonization efforts, with the International Maritime Organization setting ambitious targets for zero-emission fuels. Green shipping corridors are becoming critical mechanisms for decarbonization, but securing a sufficient supply of green hydrogen-derived fuels remains a challenge. The dialogues aim to align national hydrogen strategies with shipping demands to drive infrastructure investments and policy support for maritime decarbonization. Overall, the article emphasizes the need for a cohesive regional approach to overcome challenges in the hydrogen economy, drive sustainable investments, and ensure a smooth transition to cleaner energy sources.