Those of the Unpha Mine made progress in the research for locally producing reagents and updating the performance of existing equipment.

Technicians and workers of the Yongyu Mine, in close cooperation with relevant units, have carried out the readjustment and reinforcement in a planned way while introducing advanced technology capable of ensuring stability of cutting faces and raising both mining and extraction rate.

Officials and workers of the Phungnyon and Jungsan mines took technical measures to operate equipment at full capacity, thus increasing the production.

The Hyesan Youth Mine, too, is making successes in production and management.