After the talks, the leaders made a statement saying that they intended to create a common economic space.
The document said that Russia, Belarus, Ukraine and Kazakhstan had begun a new stage of economic integration and started talks on actions needed to create a common economic space.
The talks resulted in preparations for an agreement on the creation of the CES, harmonising of the relevant legislation, coordinating economic policy and establishing of a united independent commission on trade and rates. The final objective is to establish the Organisation of Regional Integration.
Mr Putin said that the parties would create a high-level working group led by a Kazakh representative, which would be based in Kiev. Mr Putin also stressed that this four-party initiative was open to new participants.