Present there were officials, teachers and researchers of the Institute of Coal, the Sunchon Area Youth Coal Mining Complex, Kaechon Area Coal Mining Complex, Pukchang Area Youth Coal Mining Complex, affiliated units of the State Academy of Sciences, Kim Chaek University of Technology, Phyongsong University of Coal Industry and other units.

The participants heard more than 170 valuable papers.

They introduced and exchanged scientific and technological achievements and experience gained in the coal industry.

Lectures were also given on the research into increasing anthracite mining rate and developing the watch information system by the three-dimension underground information system, etc.