In a statement carried by state news agency KCNA on Friday marking the two-year anniversary of the first summit between the two countries’ leaders, Ri Son-gwon said Pyongyang sees little use in maintaining a personal relationship between Kim Jong-un and US President Donald Trump if Washington sticks to its hostile policies.
Ri said Trump appears to have been focusing on only scoring political points while seeking to isolate North Korea and threatening it with preemptive nuclear strikes.
"Never again will we provide the US chief executive with another package to be used for achievements without receiving any returns," he said. "Nothing is more hypocritical than an empty promise."
North Korea will continue to strengthen its military in the face of US threats, Ri added.
The statement came a day after North Korea denounced the US for commenting on inter-Korean affairs, and said Washington should stay quiet if it wants the upcoming presidential election to go smoothly.