In January 1949 Pyotr Popkov, Aleksei Kuznetsov and Nikolai Voznesensky organised a Leningrad Trade Fair to boost the post-war economy and support the survivors of the Siege of Leningrad with goods and services from other regions of the Soviet Union.
As a result of the first prosecution, on 30 September 1950, Nikolai Voznesensky (chairman of Gosplan), Mikhail Rodionov (Chairman of the RSFSR Council of Ministers), Aleksei Kuznetsov, Pyotr Popkov, Ya.