Those at the Tanchon Smeltery have introduced more than one hundred innovation proposals in recent years, updating zinc oxide, glass fibre and other production processes.

Pyongyang Cosmetics Factory and other light industrial establishments made a lot of scientific and technical achievements conducive to boosting the production and improving the quality of products with less manpower.

Meanwhile, many new technological inventions for normal production and localization of imported equipment were made in fishery, traffic service and other economic sectors of the country.