Over the last 10-odd years more than 100,000 April 15 technical innovation shock brigades have been organized in factories and enterprises across the country to invent and apply more than 854,000 technical innovation schemes to production.

They have made a lot of scientific and technological successes these years so as to increase the might of the independent national economy and accelerate the building of a great, prosperous and powerful nation.

The Chollima Steel Complex, Hwanghae Iron and Steel Complex and other units in the metal industry have lowered the norm of fuel consumption by putting operation of electric furnaces on normal track and pushing ahead with technological update of coke ovens and sintering furnaces. They have also concentrated their efforts on research for developing varieties of quality steels.

Those in the sector of the power industry solved scientific and technological problems which made it possible to turn out more electric power while saving fuel, manpower and fund.

Various coal mines including February 8 Jikdong Youth Coal Mine have detected the correct vein of coal with advanced surveying techniques and raised the tunneling speed 1.2 times and more with rational blasting method.

Successes have been also made in the railway transport through the efforts for putting the railway transport on a scientific basis, normalizing the production and repair of freight wagons on a high level and realizing the technological upgrading of facilities.

Light industrial factories have deepened perseveringly the research for updating spinning and weaving machinery, developing functional cosmetics made with natural materials and increasing their output and expanding variety of consumer goods and improving their quality.