Hung Thinh Business Coal Company Limited
Thôn Hưng Thịnh, Xã Yên Bằng, y Yen District
Hung Vinh Business Trading Company Limited
Tổ 8, Thị trấn Lâm, y Yen District
Nam Ninh Services – Trading - Mineral Company Limited
Tổ 8, Khu E, Thị trấn Lâm, y Yen District