Tu Van 6 Sigma Address: Lau 9, 68 Nguyen Hue, Ben Nghe Ward, District 1, Ho Chi Minh City Enterprise code: 0313577187 Phone: 02883840642 Representative: Le Thanh Huy Adress: 0819C Chung Cu Ngo Tat To, Ward 19, Binh Thanh District, Ho Chi Minh City Ben Nghe Ward, District 1, Ho Chi Minh CityFounding date: 15 - 12 - 2015