Kim Jong Un has said he still has good memories of U.S. President Donald Trump and urged Washington to drop its demand North Korea surrender its nukes as a precondition for resuming long-stalled diplomacy.

Speaking to Pyongyang’s parliament on Sunday, Kim stressed that he had no intention of ever resuming dialogue with rival South Korea, a key U.S. ally that helped broker Kim’s previous summits with Trump during the president’s first term, according to a speech published by state media on Monday.

Kim’s comments came as South Korean President Lee Jae Myung prepared to depart for New York to attend the United Nations General Assembly, where he was expected to address nuclear tensions on the Korean Peninsula and call on North Korea to return to talks.

Trump is expected to visit South Korea next month to attend the Asia-Pacific Economic Cooperation summit, prompting media speculation that he may try to meet Kim at the inter-Korean border, as they did during their third meeting in 2019, which ultimately failed to salvage their nuclear diplomacy.

During his speech at the Supreme People’s Assembly, Kim reiterated that he would never give up his nuclear weapons program.

“There will be no negotiations, now or never, about trading anything with hostile countries in exchange for lifting sanctions,” he was reported as saying.

But Kim added that there was “no reason not to” resume talks with the U.S. if Washington abandoned its "delusional obsession with denuclearization.”