UPDATE 4-Yellen sees 'progress' in rocky US-China ties, expects more communication

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US Treasury secretary ends four-day Beijing trip

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Yellen: meetings with Chinese officials direct, productive

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Trip seen laying groundwork for Biden-Xi meeting

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Superpowers at odds over trade, tech, Taiwan, Ukraine

(Adds comments from senior Treasury official)

By Andrea Shalal

BEIJING, July 9 (Reuters) - U.S. Treasury Secretary Janet Yellen said 10 hours of meetings with senior Chinese officials in recent days were "direct" and "productive", helping stabilise the superpowers' often rocky relationship as her four-day Beijing trip ended.

Before departing China on Sunday, Yellen said the United States and China remained at odds on a number of issues but expressed confidence that her visit had advanced efforts to put the relationship on "surer footing".

"The U.S. and China have significant disagreements," Yellen told a press conference at the U.S. embassy in Beijing, citing Washington's concerns about what she called "unfair economic practices" and recent punitive actions against U.S. firms.

"But President (Joe) Biden and I do not see the relationship between the U.S. and China through the frame of great power conflict. We believe that the world is big enough for both of our countries to thrive."

With U.S.-China relations at a low over national security issues, including Taiwan, U.S. export bans on advanced technologies and China's state-led industrial policies, Washington has been trying to repair ties between the world's two biggest economies.

Secretary of State Antony Blinken visited Beijing last month, the first trip by the top U.S. diplomat in Biden's presidency. Climate envoy John Kerry is expected to visit this month.

The U.S. diplomatic push comes ahead of a possible meeting between Biden and President Xi Jinping at September's Group of 20 summit in New Delhi or a Asia-Pacific Economic Cooperation gathering scheduled for November in San Francisco.

Yellen said her visit aimed to establish and deepen ties with China's new economic team, reduce the risk of misunderstanding and pave the way for cooperation in areas such as climate change and debt distress.

"I do think we've made some progress and I think we can have a healthy economic relationship that benefits both of us and the world," she said, adding that she expected increased and more regular communications at the staff level.

Briefing reporters after the visit, a senior Treasury official said the trip as expected did not result in specific policy breakthroughs, but was "very successful" in terms of "re-establishing contact" and building relationships.