Presented to the exhibition were hundreds of valuable inventions and new technological innovations greatly conducive to the development of the nation's science and technology.

Present at the ceremony were Ri Il Hwan, department director of the Central Committee of the Workers' Party of Korea, officials of the youth league, officials concerned, young scientists, technicians, teachers, workers and three-revolution team members of the units which made presentations to the exhibition and youth and students in Pyongyang.