The forthcoming summit was preceded by two other events on the peninsula this week: working level military talks and the opening of a joint liaison office - the fruits of the initial inter-Korean summit.
Vice minister-level officials will head their teams at the office and will attend weekly meetings, the South Korean Unification Ministry said.
Both Koreas are calling for a declaration by the end of the year, but the US wants to see more concrete steps toward denuclearization first, and some analysts say a declaration could put pressure on the U.S.to withdraw its troops from South Korea. According to a diplomatic source he planned to meet with South Korea's chief nuclear envoy Lee Do-hoon to discuss the talks on North Korea he held in Beijing and Tokyo.
Visiting research fellow Cheon Seong Whun, with the Asian Institute for Political Studies, told VOA there is fundamentally one issue the worldwide community needs to focus on at the summit.
However, the Institute for Far Eastern Studies at Kyung Nam University's Professor Kim Dong-yub said denuclearization is not the focus of the upcoming summit.
At the September 5 meeting with Moon's envoys, Kim voiced hope that denuclearization of the Korean Peninsula will take place during Trump's current term in office through January 2021, South Korean officials said.
Both sides would be able used the facility to hold "open-minded discussions on issues raised in inter-Korean relations as soon as possible and come up with necessary solutions", he added.
FILE - In this image made from video provided by North Korean broadcaster KRT, missiles are displayed during a parade at Kim Il Sung Square in Pyongyang, April 15, 2017.
The office will be operational right after the opening ceremony.
Opening the joint liaison office today is an important step, considering that we're just a few days away from the next inter-Korean summit.
This undated photo released on Sept, 12, 2018, from South Korea Unification Ministry via Newsis, shows a liaison office building between South and North Korea in Kaesong, North Korea.
There Kim backed denuclearisation of the "Korean peninsula", but no details were agreed and Washington and Pyongyang have sparred since over what that means and how it will be achieved.
The summit will be the third between the leaders of North and South Korea this year and comes as talks between Washington and Pyongyang over dismantling the North's nuclear arsenal have stalled. "They no longer feel the need to act in parallel with us", a senior USA official said recently, according to the Washington Post.
A summary of the report obtained in August by the Associated Press also said North Korea has not stopped it nuclear and missile programs, adding the regime has violated United Nations sanctions by transferring coal and flouting an arms embargo. Next week's summit is set to take place from Tuesday to Thursday.
Trump and Kim Jong Un pledged to denuclearize the Korean peninsula at their historic Singapore meeting.