Displayed there were at least 3,000 valuable inventions and new technologies including over 520 IT products which were developed by organizations of the youth league and young people across the country through their dynamic drive to push back the frontiers of latest science and technology.

An opening ceremony took place at the Three-Revolution Exhibition House on Friday.

Present there were Ri Yong Su, department director of the Central Committee of the Workers' Party of Korea, Choe Sang Gon, chairman of the State Science and Technology Commission, officials of the youth league and young scientists and technicians from across the country.

Jon Yong Nam, chairman of the C.C., the youth league, made an opening address.

Then the participants went round scientific and technological achievements on display.