The designing team and technicians and workers at the Ryongsong Machine Complex settled technical problems arising in the production of parts for major custom-built equipment and a tile-molding press with a large capacity, thus contributing to placing the production on a normal basis and consolidating the material and technical foundation.

The Hungnam Fertilizer Complex and the Kowon Coal Mine provided a sure guarantee for increased production through technical innovations.

The provincial transmission and distribution station and the Hochongang Power Station established a power-saving power-control system and invented various devices to make a tangible contribution to the supply of electricity and the increased production of electricity.

The Songchongang Electric Appliances Factory and the Hamhung Trailing Farm Machine Factory manufactured highly efficient motors, potato-sowing machines and other machines, which are low at production cost, smooth to control speed and easy to use.

Teachers and researchers at Hamhung University of Chemical Engineering and Hamhung University of Hydraulic Engineering, too, have striven to settle the technical problems that await solution in practice.