Khai Thac Khoang San Huy Hoang Joint Stock Company Address: Hamlet 9, Nguyen Hue Commune, Dong Trieu Town, Quang Ninh Province Enterprise code: 5702105059 Phone: 0978558625 Representative: Nguyen Trung Kien Nguyen Hue Commune, Dong Trieu Town, Quang Ninh ProvinceFounding date: 10 - 12 - 2021