"What North Korean people want is anything to happen to crack that regime up, open that up", Kim said.
"If Beijing wants to be involved in the process, we don't have to prevent them from doing so".
During a press appearance, Trump said it was a "very nice" and "very interesting" letter.
The question of who will foot the bill for North Korean leader Kim Jong Un's anticipated upcoming stay in Singapore is just one of the logistical issues that will need to be hammered out ahead of the June 12 summit. North Korea may also ask Singapore to pay for it.
Lin made the remarks after US Defence Secretary Jim Mattis said at the same forum that North Korea would not get any sanctions relief until it had demonstrated "irreversible" steps towards denuclearisation.
The summit between the two leaders will be held on 12 June in Singapore. The Washington Post, citing two people familiar with the matter, reported that the U.S.is open to covering the costs of lodging at North Korea's preferred, five-star luxury hotel.
Despite the cancellation, Trump left the door open for renewing the summit.
"I haven't seen the letter yet".
The meeting followed two landmark summits between the leaders of North and South Korea in the last five weeks.
North Korea has been eager to secure United States security guarantee of the Kim Jong-un regime in return for abandoning nuclear arsenal. "If we believe that, we will never be able to negotiate with them and make peace with them".
FILE PHOTO: North Korean leader Kim Jong Un meets with South Korean President Moon Jae-in (not pictured) during their summit at the truce village of Panmunjom, North Korea, in this handout picture released by North Korea's Korean Central News Agency (KCNA) on May 27, 2018. There could be a similar folder inside Trump's envelope, Koh said. "You're talking about years of hostility, years of problems / But I think you're going to have a really positive result in the end".
Kim Yong Chol's trip to Washington was clearly a response to U.S. "If they deal with the issue one-by-one, other issues like human right and biological weapons would emerge and interfere with the negotiation process", Cho said. We think it's important. Both regimes have been the target of worldwide isolation - Pyongyang over its banned nuclear programme and Damascus for atrocities committed during the seven-year civil war.
The first process is likely to involve declaration and inspection of North Korea's "current and future" nuclear materials by global nuclear inspectors - such as plutonium in its Yongbyon nuclear facility and hidden highly enriched uranium.