China Petroleum & Chemical Corporation's (Sinopec) completed China's first factory-based seawater hydrogen production research project at its Qingdao Refinery. The project integrates direct seawater electrolysis with renewable energy-powered green hydrogen production, achieving an hourly output of 20 cubic meters of green hydrogen. The innovative approach not only provides a new solution for coastal regions to utilize renewable energy but also offers an alternative pathway for the resourceful utilization of high-salinity industrial wastewater. Operating within a factory setting, the project efficiently splits seawater into hydrogen and oxygen for use in refining processes or hydrogen-powered vehicles. Seawater hydrogen production is highlighted for its potential to convert unstable renewable energy into green hydrogen, which is easier to store and use, while also conserving freshwater resources. Despite challenges like salt content and impurities in seawater that can damage equipment, Sinopec, in collaboration with the Dalian Institute of Petroleum and Petrochemicals, overcame these obstacles through specialized equipment innovations and unique process designs. The project's success paves the way for large-scale industrial applications of seawater hydrogen production. Sinopec aims to lead China's hydrogen energy sector by advancing hydrogen technologies and infrastructure, including the deployment of a megawatt-scale PEM electrolyzer, commissioning a 100-kilowatt Solid Oxide Electrolysis Cell project, and establishing numerous hydrogen refueling stations and fuel supply centers by 2024.