However, the diplomat stated that his country can't give up its nuclear program as it is a "deterrent".
North Korea on Friday ruled out negotiations with Washington as long as joint US-South Korea military exercises continue, and said that Pyongyang's atomic weapons program would remain as a deterrent against a US nuclear threat.
In an interview with Reuters, North Korean Ambassador to the UN Han Tae-song brushed off the new sanctions the Trump administration has said it is preparing as well as the possibility of North Korea being added to a USA list of states sponsoring terrorism.
Shortly prior to the arrival of the Chinese representative Song Tao, the Rodong Sinmun carried a thinly veiled dispatch under the title "US should abandon stupid ambition", emphasising talks on the North's nuclear plans will not be discussed with anyone.
"The DPRK, my country, will continue to build up its self-defense capability, the pivot of which is nuclear forces", Han added.
Israel ready to cooperate with S Arabia to face Iran: Defence chief
Israel is willing to share intelligence with Saudi Arabia to confront Iran , IDF Chief of Staff Lt. -Gen. Gulf Arab countries are also anxious about the Islamic republic's support for Huthi rebels in Yemen.
But he struck a note of defiance, saying Pyongyang was "ready" for new economic actions against it.
With the wide range of radar and electronic interference operations the U.S. has been using since 2014 to hamper the testing of North Korea's Musudan intermediate-range missiles showing mixed results, Washington is now contemplating a boost-phase option of having armed drones patrolling the skies over the Sea of Japan and fire heat-sensing rockets to shoot down rising North Korean ICBMs.
The last North Korean missile test was carried out nearly two months ago, but United States officials say they have seen no signs that Pyongyang has stopped development.
Some 28,500 American troops are stationed in North Korea, a legacy of the 1953 war.
Surgeons treating a North Korean soldier who was severely wounded by gunfire while escaping to South Korea have removed dozens of parasites from his body, including presumed roundworms as long as 11 inches, hospital officials said.