The Sangwon Cement Complex has made fresh technological innovations like adding an effective auxiliary device to the nozzle of the water injector, as part of its efforts to improve its environment and keep the production going at a high rate.

The Pothonggang Shoes Factory has developed a speed controller based on frequency converter, making it possible to raise the efficiency of its production process.

The Sinuiju Essential Foodstuff Factory has computerized all production processes, thus saving labor force by 15 percent and increasing production 1.5 times.

The Pyongyang Trolley Bus Factory has invented various kinds of efficient equipment to put motor production on a normal basis.

Jong Pu Chan, director of the laboratory in the factory, told KCNA that his factory will make contribution to the building of a thriving nation by producing more trolley buses.