Asefa Public Company Limited manufactures and distributes electrical power distribution, switchboard, and trunking systems in Thailand. It operates through Manufacturing; Trading; Services, Maintenance and Installation; and Decommissioning of the Power Plant segments. The company offers customized modular and type-tested switchboards, luminaires, cable ladders, and metal sheet fabrication, along with integrated engineering services such as underground and overhead power distribution, HV/MV substations, pumping stations, micro-grids, EV charging stations, energy storage, data center solutions, and system MEP. It also provides transformers, circuit breakers, switchgear, busways, PV solar, UPS, and relays monitoring, as well as fixtures, equipment, and controllers. Incorporated in 1997, the company is based in Samut Sakhon, Thailand.