Treaty on the Creation of the USSR on 30 December 1922 by a conference of delegations from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR. The Treaty and the Declaration were confirmed by the 1st Congress of Soviets of the USSR and signed by heads of delegations Mikhail Kalinin, Mikhail Tskhakaya, Mikhail Frunze and Grigory Petrovsky, Aleksandr Chervyakov respectively on December 30, 1922. The treaty provided flexibility to admit new members. Therefore, by 1940 the Soviet Union grew from the founding four republics to 15 republics. On 8 December 1991, Russian, Ukrainian and Belarusian Presidents signed the Belavezha Accords. The agreement declared
Foreign concessions in the USSR the USSR Sovnarkom (Glavkoncesskom). Foreign concessions in the USSR Foreign concessions in the Soviet Union were enterprises (commercial, industrial, mining, etc.) with full and partial foreign capital. They existed since 1920 (in the RSFSR and later the Soviet Union). While some of the investment contracts were concluded long-term, vast majority of them were discontinued and even unilaterally terminated by the Soviet Union by mid-1930s according to the December 27, 1930, decree of Sovnarkom. The last concession contract was concluded in 1930. Foreign investments were replaced with work contracts concluded with western companies and professionals. The concessions were controlled by the