VNECO4 Electricity Construction Joint Stock Company is a Vietnam-based company engaged in the construction and engineering industry. The Company constructs electric power projects, such as transmission lines and transformers of up to 500 kilovolts. It also constructs industrial, civil, transportation, irrigation and telecommunication projects. Other fields include the manufacture of electric power components, steel fixtures, mechanic products; the trading of construction materials, such as cement, steel and iron; as well as ground freight transportation.