"China and North Korea should continue to push the situation on the peninsula to develop positively towards denuclearisation," said China's ministry of foreign affairs in a statement, citing comments from Wang.
For his part, Ri said North Korea's "commitment to the denuclearisation of the peninsula and the maintenance of peace and stability on the peninsula has not changed," the statement said.
"The international and regional situation as well as the situation on the Korean peninsula remains in flux, so timely exchanges and the coordination of positions between China and North Korea are still extremely essential," Xi said.
Talks on nuclear disarmament on the Korean peninsula between the US and North Korea have stalled in recent months, with Washington pushing to maintain sanctions until its "final, fully verified denuclearisation" and Pyongyang condemning US demands as "gangster-like."
In June, Trump and Kim opened up a face-to-face dialogue in Singapore after months of trading military threats and pointed barbs.
North Korea has taken few concrete steps to abandon its nuclear and ballistic missile programmes.
Ri's visit to Beijing marked his fifth meeting with Wang this year, as relations between China and North Korea have warmed following a chill.
Despite their Cold War-era alliance, China has supported a series of United Nations sanctions against Pyongyang over its nuclear and missile programmes.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)