China Petroleum & Chemical Corporation's (Sinopec) has completed an innovative factory-based seawater hydrogen production project at its Qingdao Refinery, marking China's first endeavor in this area. This project integrates direct seawater electrolysis with renewable energy to produce green hydrogen, with an impressive hourly output of 20 cubic meters. By utilizing green electricity from the refinery's photovoltaic power station, seawater is split into hydrogen and oxygen within a factory setting, ensuring operational efficiency and stability. This initiative not only offers a way for coastal regions to leverage renewable energy for hydrogen production but also presents a solution for the resourceful utilization of high-salinity industrial wastewater. Seawater hydrogen production is seen as highly promising, as it converts unstable renewable energy into more manageable green hydrogen while conserving precious freshwater resources. Despite challenges like equipment corrosion and efficiency reduction due to seawater impurities, Sinopec has successfully overcome these obstacles through innovative equipment designs. Sinopec's commitment to hydrogen technology is evident through its milestones like deploying megawatt-scale electrolyzers and commissioning China's first Solid Oxide Electrolysis Cell project. With a vision for large-scale industrial applications, Sinopec is positioning itself as a leader in China's hydrogen energy sector, with plans for extensive hydrogen refueling stations and fuel supply centers by 2024.