The complex has strengthened the coordination between the Party, administrative and technical personnel. Its officials encouraged the workers to increase production on the spot and helped address the problems in order to ensure uninterrupted production.

Coal mines focused on improving the mechanization of mining and increasing the carriage capacity.

Officials and workers, in cooperation with researchers of Phyongsong University of Coal Mining, introduced electric muck loaders into speeding up tunneling and newly established V-shaped steel support and cored steel production lines, thus decreasing the production cost.

Boosted operation rate of mining equipment and application of effective mining methods contribute to increasing the coal output.