Ratch Group Public Company Limited, through its subsidiaries, engages in generation and sale of electricity in Thailand, Australia, and internationally. The company operates through four segments: Domestic Electricity Generating, Renewable Energy, International Power Projects, and Related Business and Infrastructure segments. It also generates electricity through natural gas, coal, and fuel oil, as well as solar power, wind power, and biomass renewable projects. In addition, the company offers power plant operation services, as well as invests in the power energy business. Ratch Group Public Company Limited was incorporated in 2000 and is based in Nonthaburi, Thailand.