0459 GMT May 27, 2019
The leaders will discuss political and diplomatic efforts to settle the nuclear issue on the Korean Peninsula, and Kim's visit is key in this process, Kremlin aide Yuri Ushakov told reporters, The Moscow Times reported.
He said Russia's bilateral trade with North Korea fell by more than 56 percent last year because of sanctions against Pyongyang but Moscow thinks it is important that North Korea and the United States are interested in maintaining their contact.
Kim is scheduled to visit Vladivostok with an entourage of 230 people, Russia's Kommersant newspaper reported on Tuesday, citing two sources close to the process of planning the visit.
NK News, a group that follows North Korea, showed photos on its website on Monday of preparations underway at Vladivostok's Far Eastern Federal University, likely to host part of the summit, with workers installing North Korean and Russian flags.
Kim's chief aide, Kim Chang-son, was seen in Vladivostok on Sunday according to South Korea’s Yonhap News Agency, leading to speculation that the Putin-Kim summit will be held in the city around April 24-25.
The two have never met since Kim came to power after his father Kim Jong-il’s death in 2011.
The visit is also part of Kim's effort to build foreign support for his economic development plans, analysts said, after the breakdown of a second US-North Korea summit in Vietnam in February meant no relief on sanctions for North Korea.
Russia has for years been involved in efforts to persuade North Korea to give up its nuclear program. It was involved in so-called six party talks — along with the two Koreas, Japan, the United States and China — that were last held in 2009.