Group 1 - The company has been involved in the fuel cell sector for many years, with products including isolated fuel cell DC/DC systems that cover power ranges from 90kW to 300kW and achieve an overall efficiency of 97%-98% [1] - The applications of the company's fuel cell products include rail transportation, ground power generation, marine use, and heavy-duty trucks [1] - In the SOFC (Solid Oxide Fuel Cell) business, the company provides supporting power products for major domestic manufacturers [1]