Precast Ha Long Joint Stock Company Address: Khu Gieng Day 5, Viet Hung Ward, Ha Long City, Quang Ninh Province Enterprise code: 5702220083 Phone: 0965123638 Representative: Nguyen Vinh Quang Viet Hung Ward, Ha Long City, Quang Ninh ProvinceFounding date: 23 - 3 - 2026