Tokyo's envoy said earlier that none of the participants, including Japan, was completely happy with China's proposal.
Negotiators were "working up to the last minute," said Kenichiro Sasae, director of the Asia and Oceania Bureau at Japan's Foreign Ministry.
Chinese Vice Foreign Minister Dai Bingguo, who hosted a banquet for the chief delegates Saturday night, urged the envoys to end the "cold war state" on the Korean Peninsula and accept what he described as the "most realistic scenario for the relevant parties to reach an accord," Xinhua reported.
In the North's only public comments at the talks, spokesman Hyun Hak Bong on Friday reiterated Pyongyang's insistence that it needs nuclear weapons for its own defense -- against what it says is a threat from the US.
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