Nine gas transmission system operators (TSOs) around the Baltic Sea have signed a Memorandum of Understanding (MoU) to coordinate and facilitate hydrogen infrastructure development and foster the hydrogen market in the region. The collaboration involves companies from countries like Poland, Estonia, Denmark, Finland, Lithuania, Sweden, and Germany. The aim is to synchronize activities for hydrogen economy development, including coordinating infrastructure projects for hydrogen transmission and storage. The Baltic Sea region is recognized for its potential in clean hydrogen production, utilizing renewable energy sources to meet a significant portion of the clean hydrogen production goals set for 2030. The cooperation aligns with the EU’s Baltic energy market interconnection plan (BEMIP) and the Marienborg declaration, focusing on reducing reliance on imported fossil fuels, advancing climate goals, and enhancing the European energy system's safety and resilience. By developing hydrogen infrastructures, the TSOs aim to contribute to creating a competitive and liquid hydrogen market, supporting the transition towards renewable energy sources. Numerous hydrogen infrastructure projects are underway in the Baltic Sea region, including the Nordic-Baltic Hydrogen Corridor, Baltic Sea Hydrogen Collector, and Interconnector Bornholm-Lubmin. These projects aim to establish a robust infrastructure and market in line with regional and EU targets. Additionally, studies are being conducted to implement cross-border interconnectors, domestic backbones, and hydrogen storage facilities. The collaborative efforts of the gas TSOs in the region aim to bolster the development of a flexible, sustainable, and integrated energy system, ultimately supporting the achievement of EU and regional energy targets by 2030. The focus on hydrogen infrastructure development reflects a positive sentiment towards advancing renewable energy sources and reducing carbon emissions in the European energy landscape.