Tajik President Emomali Rahmon today morning left for the Russian city of St Petersburg to participate in an informal summit of the CIS heads of state. 

The CIS heads of state will review the results of the past year’s work and determine priorities of activities for the next year, a source in the Tajik government told Asia-Plus in an interview. 

They will also discuss the results of rotating chairmanship of Tajikistan in the Commonwealth of Independent States in 2018.  

Established on December 8, 1991 after the dissolution of the Soviet Union, the Commonwealth of Independent States (CIS) is a regional organization.  It now consists of Azerbaijan, Armenia, Belarus, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, Turkmenistan, Uzbekistan and Ukraine.  Georgia pulled out of the organization in 2009.

Although Ukraine was one of the founding countries and ratified the Creation Agreement in December 1991, Ukraine chose not to ratify the CIS Charter as it disagrees with Russia being the only legal successor state to the Soviet Union.  Thus it does not regard itself as a member of the CIS. In 1993, Ukraine became an "Associate Member" of CIS.  On March 14, 2014, a bill was introduced to Ukraine's parliament to denounce their ratification of the 1991 Agreement Establishing the CIS, following the Russian military intervention in Ukraine and annexation of Crimea, but was never approved.  Following the 2014 parliamentary election, a new bill to denounce the CIS agreement was introduced.

In September 2015, the Ukrainian Ministry of Foreign Affairs confirmed Ukraine will continue taking part in CIS “on a selective basis.”  Since that month, Ukraine has had no representatives in the CIS Executive Committee building.  In April 2018, Ukrainian President Petro Poroshenko indicated that Ukraine would formally leave the CIS.  On May 19, 2018, President Poroshenko signed a decree formally ending Ukraine's participation in CIS statutory bodies.  However, as of 1 June the CIS secretariat had not received formal notice from Ukraine of its withdrawal from the CIS, a process which will take 1 year following notice being given.  Ukraine has stated that intends review its participation in all CIS agreements, and only continue in those that are in its interests.