One of the agreements stipulates favorable tariffs for Kazakh goods in transit via Russia, and Russian goods transited via the Central Asian republic. Another document deals with payment and other requirements for cargo transportation on Kazakh railroad lines running via Russia and vice versa.
Russian President Vladimir Putin's aide, Sergei Prikhodko, said earlier the agreements would help improve shipment terms, including within the Eurasian Economic Community (Eurasec), which comprises five former Soviet states - Russia, Kazakhstan, Kyrgyzstan, Tajikistan and Belarus.
A common energy market and customs union have been declared the main issues on the agenda of the two-day Eurasec summit, which began earlier in the day.
Eurasec Secretary General Grigory Rapota said the legal base for the customs union would probably be completed this year, but that the exact date for establishing the union had not been set.
The five Eurasec members are also expected to discuss the preparation of documents establishing the legal basis for Uzbekistan's accession to the organization. Member states agreed in January to admit Uzbekistan to the organization, which also includes Moldova, Armenia and Ukraine as observers.
Russia, which has failed to complete WTO accession talks, including with the United States in July, has stepped up efforts to spur the development of Eurasec and other economic projects with its former Soviet allies.
