Ha Noi Transformer Manufacturing and Electric Material Joint Stock Company is a Vietnam-based manufacturer of heavy electrical equipment. The Company manufactures, assembles, and markets transformers and other industrial equipment and machinery. Its products also include lighting and electricity safety equipment, as well as other silver and ceramic materials for electricity systems. It also offers repair and maintenance services for electrical equipment and electricity transmission networks. In addition, the Company is involved in the construction of transformer stations and power transmission lines, along with the trading of electrical and telecommunication materials.