Xinyuan Power Co., Ltd. is a national high-tech enterprise specializing in the research, development, production, and sales of proton exchange membrane fuel cell (PEMFC) stacks and systems. It operates under the technology incubation system of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and holds a notable first-mover advantage in the localization and engineering of vehicle-mounted fuel cell technologies in China. The company’s core business covers the independent R&D and mass delivery of high-power vehicle-mounted fuel cell stacks (H Series and HY Series, rated power: 30–260 kW), fuel cell engine system integration, and critical components—including metallic bipolar plates and low-platinum catalyst-coated membrane electrode assemblies (MEAs). Its products have been deployed at scale in fuel cell buses, heavy-duty trucks, and special-purpose vehicles manufactured by leading Chinese OEMs such as Yutong Bus, Zhongtong Bus, Beiqi Foton, and Dongfeng Commercial Vehicle. Leveraging over 200 valid fuel cell-related invention patents—including more than 160 granted Chinese invention patents and over 20 international PCT patents—the company’s core technologies span key areas including MEAs, bipolar plates, stack structural design, cold-start capability, and water/thermal management. Its “High-Power-Density, Long-Life Vehicle-Mounted Fuel Cell Stack” received the First Prize of Liaoning Province’s Technology Invention Award in 2022 and has been included in the Ministry of Industry and Information Technology’s (MIIT) “Recommended Model Catalog for New Energy Vehicle Promotion and Application” as an approved powertrain system supplier. The company is certified to ISO 9001, ISO 14001, and IATF 16949 standards; it operates a CNAS-accredited comprehensive performance testing laboratory for fuel cell stacks and has led or participated in the formulation of 12 national and industry standards, including GB/T 23645—2023. Representative projects include hydrogen-powered transportation vehicles for the Beijing Winter Olympics (over 200 units deployed), Shanghai’s first demonstration operation of 100 fuel cell logistics heavy-duty trucks, and the fuel cell traction vehicle power system for the “Wind-Solar-Hydrogen-Energy Storage” integrated demonstration project in Ordos, Inner Mongolia. Technical collaborations extend to research institutions and automotive manufacturers in Japan, Germany, Canada, and other countries; in 2023, the company signed a joint technical verification agreement with Toyota Motor Engineering & Manufacturing (China) Co., Ltd. Currently, the company possesses intelligent production lines capable of manufacturing 5,000 fuel cell stack units annually and offers customized fuel cell stack supply, system integration, technical validation, and engineering services to vehicle OEMs, energy groups, local governments, and overseas partners.