Gray Master Viet Nam Joint Stock Company Address: No 23 Dinh Thon, My Dinh 1 Ward, Nam Tu Liem District, Ha Noi City Enterprise code: 0110192449 Phone: 0913213232 Representative: Nguyen Trong Vinh Adress: Lan Hung Hamlet, Van Quan Commune, Lap Thach District, Vinh Phuc Province My Dinh 1 Ward, Nam Tu Liem District, Ha Noi CityFounding date: 25 - 11 - 2022