Officials and employees of the Musan Mining Complex have shared their technology and experience to solve the technical problems arising in operating large-sized equipment while manufacturing necessary accessories by their own efforts and technology.

The Hungnam Fertilizer Complex has achieved a series of sci-tech successes for boosting the fertilizer production capacity by developing the initiative and ingenuity of the talents while improving the technical knowledge and skills of technicians and workers through sci-tech learning space and study-while-working educational system.

The same is true of the Onsong Area Coal-Mining Complex and the Rakwon General Machine Enterprise.