The film tells about machines for working in open pits and various mining equipment for underground mining, created in the Soviet Union and exported by the Gormash company, which is part of the Mashinoexport foreign trade association. Passage of a coal mine. Miners are working in the mine. Roadheader. Lifting mine machine. General view of the development of minerals in permafrost conditions. Special equipment with the NKMZ emblem in the desert. Drilling machines are working in a pit. General view of the SBSh drilling rig. Winter, an excavator with the Izhorskiy Zavod logo is working in a pit. A walking excavator works in the steppe.