Gunkul Engineering Public Company Limited engages in manufacturing and distribution of equipment for electrical systems in Thailand, Japan, Vietnam, and internationally. It operates through four segments: Manufacturing and Selling of Equipment for Electrical Systems; Generating and Selling Electricity; Construction Service; and Maintenance Service, Rental Service, and Others. The company is involved in the construction and investing in the generating and selling electricity business; generating and distributing power from renewable energy sources, such as solar farm, solar PV rooftop, wind farm, and floating solar for supplying to government sector; engineering, procurement, and construction for solar and wind power plant, submarine cable, microgrid, and bypass cable; operation and maintenance of solar roofs; as well as solar installation business on the roof of factory, commercial buildings, residential group, organizations and government agencies. It also offers cables and accessories, fuses and switches, hardware and connectors, insulators, lightning protection products, maintenance equipment, tools and instruments, live part covers, lightening and control products, and hardware products for transmission lines, substations, distribution lines, and low voltage lines. The company was founded in 1982 and is headquartered in Bangkok, Thailand.