Kien Truc Otium Viet Nam Joint Stock Company Address: No 02, Alley 02, Lane 02, Cau Buou Street, Ta Thanh Oai Commune, Thanh Tri District, Ha Noi City Enterprise code: 0108197337 Phone: 0904158511 Representative: Tran Van Do Ta Thanh Oai Commune, Thanh Tri District, Ha Noi CityFounding date: 23 - 3 - 2018