Hai Thanh Nguyen

The Telvina Vietnam Communication JSC engages in the manufacture of communication cable, wire and materials for post and telecommunication. Its products include optical cable, copper cable, tip cable, radio cable, coaxial cable, power wire and telephone wire. The company was founded on March 26, 1970 and is headquartered in Ha Noi, Vietnam.

Song Da No. 9.06 JSC engages in the construction industry. Its activities include construction of civil, industrial, hydroelectric, irrigation, and road works; assembly of electric lines; and construction of transformer stations. It also involved in production of household furniture, consumer goods, and building materials; business of living water; repairing machines and equipment services; and financial investments. The company was founded on May 31, 2001 and is headquartered in Ha Noi, Vietnam.