He has encouraged USA allies to maintain sanctions on North Korea until it denuclearises as part of his administration's "maximum pressure" campaign against Pyongyang.
Despite some cross-border exchanges this year, the main elements of the sanctions, such as a ban on trade and investment, remain valid, overlapping with the UN-led punishments of Pyongyang for its nuclear and missile programmes.
A State Department spokesperson said the USA and South Korea are committed to "close coordination on our unified response to North Korea".
Pompeo echoed Trump's comments when he spoke briefly to reporters during a Tuesday afternoon visit to the White House.
North Korean leader Kim Jong Un (left) and US President Donald Trump at their Singapore summit on 12 June 2018.
Kim suggested that he will invite a US inspection team to verify the explosion that the North said disabled its Punggye-ri nuclear test site in May. Nationalist newspaper Global Times said the visit was the most prominent one in recent years and that it fit into North Korea's pattern of "basketball diplomacy".
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An easing of sanctions would be in line with North Korea's wishes, along with a joint declaration with the U.S. to formally end the 1950-53 Korean War. U.S. secretary of state Michael Pompeo came away from meetings Sunday in North Korea without a date for another meeting or news on when key denuclearization milestones might take place. "I just can't leave now". On Tuesday, Trump said that he was planning a second summit with Kim for the near future. "That's a two-way street".
Pompeo told a reporter travelling with him Monday that "we made significant progress".
Unification Minister Cho Myoung-gyon said Thursday removing the sanctions has not been seriously considered and would be hard to do unless North Korea acknowledges responsibility for the 2010 attack. "We'll continue to make significant progress, and we are further along in making that progress than any administration in an awfully long time". You have no nuclear testing. But when asked when inspectors might arrive, Pompeo offered few specifics.
The Kaesong factory park was a major symbol of cooperation between the Koreas and an important income source for North Korea before the South's previous conservative government shut it down in February 2016 following a North Korean nuclear test and long-range rocket launch.
Attending the meeting were Russian Deputy Minister of Foreign Affairs Igor Morgulov, Chinese Vice Minister of Foreign Affairs and Special Representative of Korean Peninsular Affairs Kong Xuanyou, and North Korean vice foreign minister Choe Son Hui.
While Washington holds a veto on the UN Security Council - meaning it can prevent motions to alter worldwide sanctions - it has no power over Seoul's policies, which include a range of bilateral sanctions against North Korea. Choe was out of the country-meeting officials in Russian Federation and China-when the Americans arrived.