Manh Duc Do

Song Da 3 JSC engages in the construction services. The company's business activities include construction of electrical buildings, traffic structures, civil and industrial buildings, water supply systems, underground tunnels and power transmission lines and transformers. The firm's other activities include manufacture of concrete products and structural precast concrete; Investment in construction of industrial parks and urban areas; trading of bonds and import of construction equipment. The company was founded on October 20, 1988 and is headquartered in Pleiku, Vietnam.

Song Da No. 10.1 JSC engages in the industrial construction business. Its activities include the construction of civil engineering, transportation, irrigation, and hydroelectric works. It also manufactures construction materials such as stones and concrete; provides mechanical processing, automobiles and motor vehicles repair and maintenance services; and trades equipment for construction. The company was founded on October 24, 2000 and is headquartered in Gia Lai, Vietnam.