The Munphyong Smeltery laid a foundation for sustained growth of production with its own sci-tech forces and pushed ahead with the overall technical updating of production processes and the project for capacity expansion, fulfilling its yearly plan ahead of schedule till November.

The Phungnyon Mine put the removal of overburden ahead of others and directed efforts and means into the prospective stopes to raise the rate of carrying out the plan.

The December 5 Youth Mine carried out its crystal mirabilite production plan before schedule.

Similar successes were witnessed at the Taedonggang Battery Factory and Yongyu, Jungsan and other mines.