Dau Tu Thuong Mai Polyfill Joint Stock Company Address: Phia Nam Industrial Zone, Van Phu Commune, Yen Bai City, Tinh Yen Bai, Viet Nam Enterprise code: 5200946629 Phone: 0988950023 Representative: Hoang Minh Hieu Van Phu Commune, Yen Bai City, Yen Bai ProvinceFounding date: 17 - 3 - 2025