Sanyo Engineering & Construction Inc. is mainly engaged in the provision of internal wiring and electrical engineering services. The Internal Wiring Engineering segment designs and constructs indoor and outdoor electrical facilities, internal communications facilities, as well as electrical and instrument facilities for various plants. The Electrical Power Engineering segment designs and constructs electrical wires transmission and distribution facilities, as well as the constructs power generation and transformation facilities, and information communication facilities. The Ventilation and Water Supply Engineering segment designs and constructs ventilation equipment, as well as water supply and drainage equipment. The Machinery Manufacturing segment designs, manufactures and maintains electrical-related equipment, such as high and low pressure electricity receiving, distribution, control, surveillance and maneuvering boards.