As the global movement accelerates toward the realization of a decarbonized society, the mobility industry has a growing need for electrification of vehicle powertrains. In order to expand the electric vehicle market in the future, it is necessary to solve issues such as higher battery performance and fast charging technology. In recent years, fuel cell systems that can extract electric energy directly from clean hydrogen fuel and achieve high power generation efficiency have attracted attention as the most effective means of zero emissions. Fuel cell systems can be applied to vehicles, stationary and other industrial applications, and are expected to become widely used after 2030 with the provision of hydrogen infrastructure. It is also incorporated into long-term policies of countries around the world, and continuous market expansion is expected. Mitsubishi Heavy Industries Engine & Turbocharger Co., Ltd. has developed a highly efficient electric compressor for fuel cell systems to meet the changing business environment of shifting from internal combustion engine vehicles to zero-emission vehicles, and has begun supplying samples to customers. Widespread use of hydrogen infrastructure takes time, and it is expected that the infrastructure will be developed first for limited applications such as transportation between bases. This report introduces the product specifications and features of the high-efficiency electric compressor for commercial vehicles.