تعدين الفحم كاليمانتان إندونيسيا
تعدين الفحم كاليمانتان إندونيسيا Melak Coal Mine Thiess Thiess in Indonesia has fast-tracked the Melak Coal Mine project to exceed the a greenfield coal mine located near Melak in East Kalimantan and owned by the Thiess undertook mine planning overburden removal coal mining and coal