BEIJING -- China and the United States agreed to closely cooperate under the G20 framework to boost the world economy, a senior Chinese official said Tuesday.

The two sides "have exchanged in-depth views" over bilateral cooperation under the framework, and pledged to work together to ensure the success of the G20 Hangzhou in September, State Councilor Yang Jiechi said on the sidelines of the eighth China-US Strategic and Economic Dialogue.

The strategic dialogue has achieved over 100 substantial outcomes in nine areas, Yang said.

China appreciates that the United States has reiterated its one-China policy, hopes Washington will honor its commitment and support the peaceful development of cross-Strait relations, he said.

China and the United States have extensive common interests in the Asia-Pacific region and face common challenges, Yang said, adding that the two sides should respect each other's interests and strengthen communication via multi-level interaction, rather than "cultivate exclusive circles."

On the Korean nuclear issue, China has reaffirmed its position in favor of pushing for denuclearization while maintaining peace and stability across the Peninsula, and will pursue the settlement of issues peacefully through dialogue and consultation, Yang said.

China and the United States called on all parties concerned to work together to create conditions for resuming the Six-Party Talks at an early date, he added.