Those of the Sunchon Area Youth Coal Mining Complex take the lead in making a breach in increasing coal production.

The Kim Hyok Youth Shock Brigade, the Cha Kwang Su Youth Shock Brigade and the Kang Ho Yong Youth Shock Brigade of the Chonsong Youth Coal Mine made innovations by positively contriving or introducing blasting methods for higher tunneling speed, thus fulfilling their yearly national economic plans ahead of schedule.

Other youth shock brigades of the February 8 Jikdong Youth Coal Mine and Ryongdae Youth Coal Mine have also over-fulfilled their national economic plans for the first half of the year through collective innovation.

Several shock brigades of the Tokchon Area Coal Mining Complex dynamically waged mass movement under the slogan "One for all and all for one!", thus honoring their national economic plans for the first half of the year.

Similar achievements have also been made by the youth shock brigades of several other coal mining complexes.