Ky Thuat Cong Nghe Optis Viet Nam Joint Stock Company Address: 18th Floor, VTC Online Building, No 18 Tam Trinh, Minh Khai Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0105130292 Phone: 0945744335 Representative: La Hong Vu Adress: No 12, Alley 325/45, Kim Nguu Street, Hai Ba Trung District, Ha Noi City Minh Khai Ward, Hai Ba Trung District, Ha Noi CityFounding date: 20 - 1 - 2011