Asefa Public Company Limited manufactures and distributes electrical power distribution, switchboard, and trunking systems in Thailand. It operates through Manufacturing; Trading; Services, and Maintenance and Installation; and Decommissioning of the Power Plant segments. The company offers modular and type-tested switchboards, busway, EV charger, cable ladder and trunking, luminaire, metal sheet fabrication, and other manufacturing products; and transformers, circuit breakers, switchgears, PV solar, UPS, relays motoring, air conditioner, motor pump, fixture, equipment, controller, and others sourcing and supply products. It also provides engineering services for underground and overhead power distribution, HV/MV substation, pumping station, micro/smart grid, EV charging station, energy storage, data center, system MEP, and others; and industrial and building automation control, power quality improvement, and power monitoring and lighting control and management system integration. In addition, the company offers after sales services comprising of modification and upgrade, preventive and corrective maintenance, spare part management, monitoring and online service, and other services. The company was incorporated in 1997 and is based in Samut Sakhon, Thailand.