Thanh Quang Trinh

IDG Ventures Vietnam Management Co. Inc. is a Venture Capital firm, a subsidiary of International Data Group, Inc. founded in 2004. The firm is headquartered in Hanoi.

Song Da Construction Corp. provides construction and contracting services. It offers power transmission lines, tunnels, factories, hydro-electric power plants, factories, and other infrastructure contracting services. The company is headquartered in Hanoi, Vietnam.

Song Da Corp. JSC engages in the provision of residential building construction services. Its activities include construction of power plants, manufacture and supply of construction materials and equipment, and real estate business. The company was founded on June 1, 1961 and is headquartered in Ha Noi, Vietnam.

Song Da 8 JSC engages in the construction industry. Its activities include construction of electrical buildings, traffic structures, civil and industrial buildings, water supply systems, underground tunnels, 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; trade of bonds and import of construction equipment. The company was founded on November 2, 1996 and is headquartered in Son La, Vietnam.

Song Da 25 JSC engages in the construction business. It constructs civil, industrial properties, roads, irrigation works and technical infrastructures. The firm also manufactures, sells construction material and invests in real estate properties. The company was founded on December 18, 1971 and is headquartered in Thanh Hoa, Vietnam.

Song Da 709 Co. Ltd. engages in ship building industry. It is also involved in repairing and maintenance services of ship and marine support services. The company was founded on August 11, 2009 and is headquartered in Quang Ninh, Vietnam.

Song Da 7.02 Hydroelectric JSC engages in the construction of hydro power, irrigation, transportation, and postal office. Its other activities include construction of water drainage system for urban area and industrial park; manufacture and trading of metal products; and import export business of transportation equipment. The company was founded in November 25, 2004 and is headquartered in Lai Chau, Vietnam.