Construction and Investment Joint Stock Company No. 492 is a member of Transport Engineering Construction Corporation No. 4 (Cienco4) established on June 2, 1992.

Business activities:

• - Construction of transport, irrigation, industrial, civil, domestic and foreign ports;
• - Trading in real estate; - Investing in construction of transport works in the form of BOT and BT.
• - Manufacturing and trading in building materials, precast concrete components.
• - Importing and exporting transport materials and equipment.
• - Construction of power lines and substations up to 35KV
• - Testing construction materials.
• - Business services, trade ....

Main technology of constructing wharf for the Company:

• - Technology of bored piles with diameter: D = 1 - 2 m.
• - Construction technology of Supe T. Beam
• - Construction technology of prestressed concrete beams: L = 18 -33 m.
• - Construction technology of reinforced concrete box beams by the on-site method: L = 50 m.
• - Construction technology of reinforced concrete beams by the method of balanced cantilever casting. L = 120 m.
• - Construction technology of RCC bridges by Mobile formwork scaffolding (MSS) system.