Ratch Group Public Company Limited, an energy and infrastructure company, engages in the generation and sales of electricity and steam in Thailand, Australia, Singapore, Indonesia, and internationally. The company operates through four segments: Domestic Electricity Generating, Domestic Renewable Energy, International Power Projects, and Domestic Related Business and Infrastructure. It generates electricity through natural gas, coal, and fuel oil, as well as invests in renewable power generation including solar, wind, biomass and hydro power. The company also offers power plant operation and maintenance services, as well as invests in the power energy business. Ratch Group Public Company Limited was incorporated in 2000 and is headquartered in Nonthaburi, Thailand.