The coal mine labor protection institute of the academy and its Kogonwon branch are stepping up the research to lengthen the cycle of spontaneous ignition and further raise the coal extraction rate.

The mining engineering institute directs efforts to perfecting the manufacture of double-pulley propulsion device, which is of significance in raising the mechanization proportion at coal faces.

The Chongjin Mining Engineering Institute has developed a mining method and a road maintenance method suited to intricate geological conditions while concentrating all efforts on making efficient mining machines.

Other institutes are striving to make scientific achievements conducive to increasing the coal production.