Ket Cau STC Joint Stock Company Address: Lot 05, Cong Nghiep Tap Trung Trung Thanh Cluster, Hien Khanh Commune, Tinh Ninh Binh, Viet Nam Enterprise code: 0601310704 Phone: 0967880182 Representative: Nguyen Ngoc Vinh Ninh Binh ProvinceFounding date: 6 - 1 - 2026