Kazakhstan. The city of Kostanay. May 20-21, 1957. Session meeting at the House of Culture. Participants of the session in the hall, on the podium, on the sidelines. Speakers: V. S. Nemchinov, I. T. Tazhiev, Sh. Ch. Chokin, Minister of Geology of Kazakhstan Bogatyrev. Among those present I. A. Kochergin, A. Kalmenov, D. V. Toporkov, S. D. Batishchev. Sokolovsko-Sarbaisky mining and processing plant. May 21, 1957 Session participants in the iron ore quarry. Production processes of ore mining. IA Kochergin gives explanations.