Khai Thac Khoang Tho Quang Minh Joint Stock Company Address: No 18, Nghach 121/11, Y La Street, TDP Trung Kien, Duong Noi Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111505045 Phone: 0986027983 Representative: Le Duy Tan Duong Noi Ward, Ha Dong District, Ha Noi CityFounding date: 19 - 5 - 2026