- CEO
- Thanh Tat Dang
- Sector
- Industrial services
- Industry
- Engineering & construction
- Address
- Gia Lai Vietnam
- IPO Date
- Dec 22, 2006
- Business
- Song Da 505 Joint Stock Company (HNX: S55) is a Vietnam-based engineering, construction, and power generation company primarily engaged in infrastructure development, renewable energy production, and the manufacturing of construction materials. Founded in 2004 through the equitization of an affiliate under Song Da Corporation, the company is headquartered in Chu Se District, Gia Lai Province, Vietnam. Song Da 505 operates across three primary business segments: Construction and Installation, Power Generation, and Building Materials and Equipment Services. In its Construction and Installation division, the company provides general contracting, civil engineering, and specialized installation services for hydropower plants, thermal power stations, irrigation dams, water supply networks, industrial plants, highway and bridge infrastructure, and urban residential projects. In its Power Generation segment, the company invests in, develops, owns, and commercially operates small- and medium-scale hydropower stations, supplying electricity directly to the national grid under long-term power purchase agreements with state utility Vietnam Electricity (EVN). In its Building Materials and Equipment Services division, the company manufactures and distributes ready-mix concrete, prefabricated concrete components, crushed quarry stone, graded aggregates, and construction sand; and provides heavy equipment leasing, earthmoving machinery rentals, crane operations, and mechanical repair and maintenance services. The company primarily serves state agencies, industrial developers, energy utilities, and regional contractors across Vietnam, with core operations centered in the Central Highlands and central provinces. In recent developments, Song Da 505 has accelerated its strategic shift toward clean energy by upgrading turbine efficiency, modernizing dam safety instrumentation, and optimizing generation capacity across its operational hydropower portfolio. Concurrently, the company has reorganized its engineering operations to focus on high-margin specialized infrastructure and energy-related civil works, expanded its commercial quarrying and concrete batching capacities to supply major regional transport infrastructure projects, and modernized its heavy equipment fleet to enhance operational margins.