Ky Thuat Top Opto (Ntnn) LTD Address: Street No 22, KCX Tan Thuan, Tan Thuan Dong Ward, District 7, Ho Chi Minh City Enterprise code: 0313439370 Phone: 02837700305 Tan Thuan Dong Ward, District 7, Ho Chi Minh CityFounding date: 14 - 9 - 2015