North Korea has claimed the US is considering taking it off its list of terrorism-sponsoring states.
North Korean envoy Kim Kye-Gwan made the announcement as he left Beijing during a recess in six-nation nuclear disarmament talks.
Before boarding a plane for Pyongyang, Mr Kim said a statement agreed by the six countries would reflect North Korea's demand to be taken off the US list.
He said he expected the joint statement, still not disclosed to the public, would be released soon.
The six nations, the two Koreas, the US, China, Japan and Russia, wrapped up four days of talks on Sunday, after agreeing on a joint statement to push forward a landmark February disarmament deal.
The provisional agreement was then sent back to the governments for approval, as host nation China declared the start of a two-day recess.
The complex six-party negotiations, which began in 2003, failed to prevent North Korea carrying out its first atomic weapons test last year but eventually led to the February deal.
Pyongyang has repeatedly demanded that Washington remove its designation as a state sponsor of terrorism and cancel sanctions applied under the US Trading with the Enemy Act.
Korean summit
The leaders of North and South Korea have begun a three-day summit in Pyongyang, only the second between the two states which are still technically at war.
North Korea's reclusive leader Kim Jong-Il unexpectedly welcomed visiting South Korean President Roh Moo-Hyun this morning, raising hopes for an end to over half a century of hostility.
Mr Roh, paying only the second visit to Pyongyang by a South Korean leader in six decades, was originally scheduled to be greeted only by de facto head of state Kim Yong-Nam.
He hailed a new mood of reconciliation between the neighbours which remain technically at war from the 1950-53 Korean conflict.
In a carefully choreographed ceremony broadcast live, Mr Roh walked across a yellow strip in the Demilitarized Zone dividing the two Koreas, stepping over the world's last Cold War frontier.
However it is thought the three-day summit will be heavy on symbolism but short on substance. The South Korean leader, who leaves office next year, has already said he is unlikely to focus on North Korea's nuclear programme, fearing to spoil the atmosphere.
