China Petrochemical Corporation plans for a “West-to-East” hydrogen pipeline. The Inner Mongolia Autonomous Region is rich in wind and solar resources and has a favorable advantage for the development of green hydrogen. The “Xidan Dongfeng” pipeline will begin in the city of Wulanchabu in Inner Mongolia and terminates in Beijing. The total length of the pipeline is over 400 km. It is China’s first large-scale, long-distance, complete hydrogen transportation pipeline that straddles provinces and autonomous regions. Once completed, it will replace the existing fossil energy-based hydrogen production in Beijing, Tianjin, and Hebei, and will greatly alleviate China’s green hydrogen supply-demand mismatch problem, and will serve as a strategic model and driving force for the construction of future cross-regional hydrogen transportation pipelines in China. The first phase of the pipeline will have an annual transport capacity of 1.5 million cubic meters per year.