China's President Xi Jinping on Wednesday met with Gavin Newsom, the governor of the US state of California, in the capital Beijing.
Earlier, Foreign Minister Wang Yi hosted the California governor, who is on a weeklong visit to China. California would be in the world's top five economies if it were a country.
This came ahead of Xi's possible trip to the US next month to attend the Asia-Pacific Economic Cooperation (APEC) summit.
In his message sent to the Gala Dinner of the National Committee on US-China Relations held in New York on Tuesday, Xi said Beijing was "ready to work with the US to make mutual progress.
"China is willing to adhere to the three principles of mutual respect, peaceful coexistence, and win-win cooperation to promote mutually beneficial cooperation with the United States, properly manage differences, and work together to respond to global challenges, achieve mutual success and common prosperity, and benefit both countries and the world," Xi said.
Xi also praised the committee's active role in promoting exchanges and cooperation in various fields between the two countries.
If the Chinese leader flies to San Francisco for the APEC summit, he may hold a summit meeting with US President Joe Biden.
Chinese Foreign Minister Wang Yi is departing for a three-day visit to Washington, beginning Thursday, where he will meet with US Secretary of State Antony Blinken.
"As two world powers, whether China and the United States can establish a correct way to get along is crucial to world peace and development and the future and destiny of mankind," said Xi, calling for "mutual respect, peaceful coexistence, and win-win cooperation" to promote mutually beneficial cooperation with the US.