EASTGATEH2V will deploy an integrated H2 ecosystem in the region of Kosice, Slovakia. It brings together all core elements of the value chain i.e. production, distribution infrastructure and end-use of renewable hydrogen across mobility and industry. The project is based on the integration of 4 deployment sites across the region, including 4MW of newly deployed electrolyser capacity deployed in two stages (2 MW alkaline and 2 MW PEM respectively), connected by H2 trailer distribution to 4 distinctive mobility end-user applications, namely buses and a garbage truck, a H2-powered touristic boat and aviation VTOL vehicles, along with delivery of H2 to existing industrial applications. The objective is to facilitate full integration and operational interconnectivity of all these H2 applications with the existing regional transport, industry and broader energy system. EASTGATEH2V will also deliver studies for scaling-up the regional ecosystem, including deployment of pipeline H2 infrastructure at transmission and distribution level, along with studies for the deployment of large-scale renewable H2 supply in neighbouring Ukraine including pipeline interconnections with Kosice region. The EU replicability of this regional H2 ecosystem will be showcased via replication studies with other CEE regions. EASTGATEH2V also aims to address public perception towards hydrogen, by ensuring high visibility of the H2 Valley project to local communities, through a comprehensive communication and dissemination plan. The aim is to expand the project reach beyond technology demonstrations, analysing also its socio-economic impacts, and providing CEE regions with a blueprint for decarbonization of their economies, and an example of the contribution of H2 Valleys towards the EU energy, industry and net zero targets. EASTGATE H2V is an integrated collaborative project, aiming to ensure the uptake of hydrogen and the deployment of H2 Valleys in other regions across EU and beyond.