Thuong Mai Dich Vu Ky Thuat Dai Duong Joint Stock Company Address: No 20/30 Lam Son, Lam Son Ward, Le Chan District, Hai Phong City Enterprise code: 0201049679 Phone: 02253714276 Representative: Hoang Ngoc Son Adress: No 20/30 Lam Son, Lam Son Ward, Le Chan District, Hai Phong City Lam Son Ward, Le Chan District, Hai Phong CityFounding date: 29 - 3 - 2010