Mot Thanh Vien Blue Topaz LTD Address: 46, Noi Khu Hung Gia 4 Street (R4, 71), Phu My Hung, Tan Phong Ward, Tan Phong Ward, District 7, Ho Chi Minh City Enterprise code: 0312396188 Phone: 02837853658 Representative: Do Huy Hoang Adress: 78 Quan Su, Tran Hung Dao Ward, Hoan Kiem District, Ha Noi City Tan Phong Ward, District 7, Ho Chi Minh CityFounding date: 31 - 7 - 2013