Officials of the Ministry of Mining Industry and relevant units have directed efforts to solving the problems of substantial significance in increasing production.

The Unpha Mine improved the performance of winches and repaired the grinder and other equipment in a qualitative way by introducing technical innovation achievements.

The Songchon Mine manufactured motor rotor fixed axle by its own efforts to increase the operation rate of equipment.

The Manpho Smeltery finished the modernization of gas treatment process by dint of science and technology.