During the European Hydrogen Week in Brussels, the 3 Seas Hydrogen Council announced the signing of a Letter of Intent by its members to develop a comprehensive white paper for green reindustrialisation in Central and Southeastern Europe. This initiative aims to define strategic pathways for the supply of green ammonia, hydrogen, and methanol from Sunbelt nations to the region. The white paper will guide policymakers and industry leaders on actionable strategies to achieve decarbonisation goals, optimize transport corridors, and meet EU RFNBO requirements. The document will also focus on fostering regional cooperation, managing local resources responsibly, and advancing hydrogen technologies in sectors like fertilizers and maritime transport. It highlights the importance of aligning sustainability with geostrategic trade routes and supporting the transition to a sustainable energy future through a well-balanced mix of domestic production and imports. The initiative has received positive feedback from key stakeholders like Hydrogen Poland and the Ukrainian Hydrogen Council, demonstrating a shared commitment to promoting green energy development and enhancing energy security and competitiveness in Europe.