As the competition gets into full swing, coal mines are actively introducing rational tunneling methods to produce more coal.

All the coal mines under the Sunchon Area Youth Coal Mining Complex have recorded high results in the competition every day.

Notably, the February 8 Jikdong Youth Coal Mine is speeding up tunneling and securing more preparatory cutting faces by rationally allocating tunneling forces in consideration of the condition of each working face.

Other coal mining complexes competitively participate in the event while sharing and generalizing excellent technology and experience.