Vice President Jusuf Kalla said the meeting between United States President Donald Trump and North Korean leader Kim Jong-un is expected to contribute to ending tensions on the Korean peninsula, which at the same time also means the USA must withdraw its forces from South Korea.
China had always implemented United Nations sanctions against its reclusive neighbour "in a serious and strict manner", he said.
However, the Straits Times also suggests that Pyongyang "may have revealed the charter of a Chinese airplane to demonstrate its close relationship with China in the face of global sanctions led by the USA".
Although China remains North Korea's closest ally, its government has come under increasing pressure during the past year to take a tougher approach to its communist neighbor in an attempt to rid it of its nuclear weapons.
"At the same time, there needs to be a peace mechanism for the peninsula, to resolve North Korea's reasonable security concerns", he added.
U.S. President Donald Trump and North Korean leader Kim Jong Un walk after lunch at the Capella Hotel on Sentosa island in Singapore June 12, 2018.
Geng said Beijing would continue to fulfil its worldwide obligations and play a constructive role on the Korean peninsula.
The US and North Korea commit to recovering remains of the Korean War, including immediate repatriation of those already identified.
There is also an analysis that Pyongyang has intentionally revealed the charter of a Chinese airplane to display a close bilateral relationship in the face of global sanctions led by the U.S.
"Of course, we are willing to see all relevant sides making positive efforts on this".
Wang said in a statement earlier that China welcomed and supported the summit between the United States and North Korean leaders and hoped the two countries could reach a basic consensus on achieving denuclearisation.
Speaking on the sidelines of the 24th Nikkei Conference on the Future of Asia in Tokyo, Kalla said denuclearization and the withdrawal of USA troops from the Korea peninsula was necessary to realize peace. "And this role will continue".
The 1950-53 Korean War ended with an armistice and a state of war still technically exists between the two Koreas.
Lasting peace has obvious benefits for China, especially in bolstering the development of its rust-belt and landlocked northeast which borders North Korea and would suffer in the even of conflict.