Officials of the Ministry of Coal Industry and coal mining complexes across the country raised the hot wind for collective competition and took a measure of supplying equipment and materials needed for tunneling by organizing high-speed tunneling competition.

The Sunchon Area Youth Coal Mining Complex secured a hundred and tens of spare cutting faces by giving definite precedence to tunneling.

In the Tokchon Area Coal-Mining Complex, over 50 tunneling workteams and youth shock brigades have made uninterrupted innovations and progress while preparing more coal fields in the spirit of finishing two-year and yearly plans ahead of schedule.

Colliers of various complexes studied and introduced efficient drilling equipment and blasting method and keep securing new coal fields by vigorously conducting the campaign of high-speed tunneling.