Haiphong Electricity Water Machine Assembly Joint Stock Company (HEWMAC) is a Vietnam-based company engaged in the transmission and distribution of electricity for rural areas. It is also involved in the construction of power transmission lines and transformer stations, as well as the installation of building equipment, heating and air-conditioning systems, electrical systems and water systems. Other activities include the manufacture and trading of electrical cables and wires, along with prefabricated building components, metal structures and concrete modules. The Company has one wholly owned subsidiary engaged in the manufacture and trading of electrical cables and equipment.