This year, they repaired a transport line of several hundred kilometers, put into good condition more than a hundred trams and produced thousands of coal wagons.

The construction and reconstruction of conveyor belts have been pushed forward at different coal mines to create favorable conditions for carrying coal in time.

Coal mines of Sunchon, Pukchang and other coal-mining complexes have pushed ahead with a mass technical innovation movement to raise the actual rate of trams and coal wagons.

Officials and employees of coal mining machine factories across the country are busy with the production of various accessories needed for normal operation of coal wagons and conveyor belts.

Tokchon, Pukchang and Sunchon coal mining machine factories produced hundreds of coal wagons and sent them to coal mines.