[6][7] Abe also expressed a desire to hold a bilateral meeting with North Korea on the issue of abductions of Japanese citizens, pressing Trump to raise the matter at the summit.

On May 31, 2018, Sergey Lavrov met with Kim Jong Un in Pyongyang to discuss denuclearization by easing sanctions to speed up the process of disarmament, and in turn, he received a favorable response from the North Korean leader.

[9] President Vladimir Putin pledged to ensure that the talks would be a success, suggesting that all regional players such as Russia should provide North Korea with guarantees in order to have a fruitful meeting.

[10] Defence Minister Ng Eng Hen[11] announced that they would be willing to pay a certain amount of budget for the US and North Korean delegations' residence and meeting place for the success of the historic Trump–Kim summit.

[12] South Korean President Moon Jae-in expressed hopes for both Trump and Kim to take "bold decisions" in their first meeting, acknowledging the "long process" of North Korea's denuclearization.

[17] Several lawmakers and foreign policy experts voiced concerns about the wisdom of agreeing to a summit with insufficient preparations by lower-level officials, mainly due to the lack of trust between the United States and North Korea.

Austrian MEP Paul Rübig, deputy chair of the committee, suggested that the United Nations take part in the Trump-Kim summits to give them an international horizon.

As per the UN Security Council resolutions to North Korea, China conceives that the current sanction measures can be adjusted by Trump and Kim's signing of a joint statement.

[24] The Ministry of Foreign Affairs praised the meeting, but called for an end for the nexus between Pakistan and North Korea, stating, “India welcomes the United States-DRPK summit in Singapore.

It is not clear that he would not cancel the agreement before returning home.”[27] Israeli Prime Minister Benjamin Netanyahu stated on Twitter, "I commend US President Donald Trump on the historic summit in Singapore.

[31] Malaysian Prime Minister Mahathir Mohamad, also welcoming the summit, said "the world should not treat North Korea leader Kim Jong-un with skepticism and instead learn from his new attitude towards bringing about peace".

[32] In a joint press conference in Tokyo with Japan, he said: "We hoped for a successful outcome from the historic meeting",[30] adding that "Malaysia will re-open their embassy in North Korea as an end to the diplomatic row over the assassination of Kim Jong-nam last year".

[34] Philippine Presidential spokesperson Harry Roque issued the statement which is "We welcome the landmark summit between US President Donald Trump and DPRK leader Kim Jong Un in Singapore," and stressed that "History has indeed been written."

[35] The Russian Deputy Foreign Minister Sergei Ryabkov issued a formal statement applauding Trump–Kim's decision, detailing that it was required to finish any provocative operation on the Korean Peninsula.

[39] South Korean officials and US White House press secretary Sarah Huckabee Sanders confirmed that the war games which is named of "Ulchi Freedom Guardian”(UFG) operation would be suspend following Trump-Kim summit in Singapore as per the denuclearisation process on Korea peninsula.

[44] The Ministry of Foreign Affairs of Taiwan issued a news report expressing its pleasure at the specific consensus reached between the United States and North Korea at the summit meeting, and will continue to cooperate with the international community as a means of promoting regional peace and stability.

[45] Thailand's Ministry of Foreign Affairs stated in a press release that "this epoch-making summit reflects the strong commitment of the two leaders to achieve sustained peace, stability and prosperity on the Korean Peninsula with denuclearisation as the key step".

Prime Minister Prayut Chan-o-cha said that the summit was "a good sign to the world, if [Supreme Leader Kim Jong-un and President Donald Trump] can practice what they agreed".

"[47][48] Foreign Secretary Boris Johnson took to Twitter after the summit ended and said in a tweet, "Welcome the news that President Trump and Kim Jong Un have held constructive talks in Singapore.

[56] European Union diplomatic chief Federica Mogherini issued the statement that EU praised the summit between US President Donald Trump and North Korean leader Kim Jong Un.