Russian President Vladimir Putin is also at the cosmodrome, where the two leaders will sit down for talks.
Kremlin press secretary Dmitry Peskov said earlier that the two leaders would discuss bilateral cooperation, including trade and economic ties and cultural exchanges, during the talks, which will take place both as part of delegations and in a one-on-one format.
Putin and Kim will also discuss the situation in the region and international affairs in general, Peskov stated.