Cotana Group Joint Stock Company, formerly Thanh Nam Construction and Investment Joint Stock Company, is a Vietnam-based company involved in the engineering and construction sector. The Company is engaged in the construction of infrastructure, transportation, irrigation, industrial and civil works. It also manufactures and trades construction materials and fixtures, such as cement, lime, gypsum, clay-based products, roofing and insulation materials, as well as construction machinery and equipment. In addition, it is involved in the provision of real estate related services, such as brokerage, advertising, management and auction services.