400-odd sci-tech data of practical significance were highly appreciated at the exhibition.

A closing ceremony took place at the Sci-Tech Complex on August 30.

Attending it were Mun Chol, chairman of the Central Committee of the Socialist Patriotic Youth League, Jon Kyong, vice-chairman of the State Commission of Science and Technology, youth league officials and young people.

The DPRK's patents and citations were awarded to the highly-appreciated youth league organizations and participants. And announced there were the team standings of provincial youth league committees and youth league organizations of ministries and national agencies.

Then followed oath-taking speeches.

Mun Chol made a closing address.