The complexes made a breakthrough in increasing the production by concentrating their manpower and means on the places with abundant deposits favorable for the mining, while properly organizing the economic work for consolidating the existing production foundations.

Especially, the workers of the Tokchon Area Coal Mining Complex distinguished themselves in carrying out the national economic plan. Other coal mining complexes, including the Pukchang Area Youth Coal Mining Complex and the Tukjang Area Coal Mining Complex, fulfilled their yearly plans.