Grammenz Group LTD Address: 34 Cao Duc Lan, An Phu Ward, Thu Duc City, Ho Chi Minh City Enterprise code: 0317639758 Phone: 0907135967 Representative: Jamyla Truong Phuoc Thuy Linh Adress: 67 Dang Van Ngu, Ward 13, Phu Nhuan District, Ho Chi Minh City An Phu Ward, Thu Duc District, Ho Chi Minh CityFounding date: 9 - 1 - 2023