Dau Tu Ha Tang VWS Joint Stock Company Address: No A43, Lane 1, Nguyen Trai Street, Vinh Phuc Ward, Tinh Phu Tho, Viet Nam Enterprise code: 2500767978 Phone: 0914186658 Representative: Tran Thanh Huong Phu Tho ProvinceFounding date: 4 - 2 - 2026