Tham My Casamia Joint Stock Company Address: O So 14, Lot B2, Hai Ben Urban Area, Street 188, Khu Hoang Hoa Tham, Mao Khe Ward, Dong Trieu City, Quang Ninh Province Enterprise code: 5702174013 Phone: 0976805604 Representative: Truong Thi Loan Mao Khe Ward, Dong Trieu Town, Quang Ninh ProvinceFounding date: 8 - 1 - 2025