Song Da No12 Joint Stock Company is a Vietnam-based construction company. It constructs hydroelectric plants and related power structures, residential and institutional buildings, as well as other civil and industrial facilities. The Company manufactures and trades construction materials, such as ready-mix concrete and cement. It is also involved in the trading of construction sand and pozzolan. In addition, the Company is engaged in the groudn and water transportation of oversized and overweight freights, as well as the building and repairing of vessels and barges.