By David Lawder and Joe Cash

WASHINGTON/BEIJING (Reuters) -Senior Chinese trade negotiator Li Chenggang is expected to travel to Washington this week to meet U.S. officials, a United States government spokesperson said, with the two superpowers looking to chart a path beyond their current tariff truce.

Li, China's international trade representative and a key negotiator alongside economy tsar He Lifeng, may meet deputy-level U.S. government officials, the spokesperson said late on Monday, adding that the visit was not part of a formal negotiating session.

A source familiar with the negotiations said there was no meeting planned between Li and U.S. Trade Representative Jamieson Greer and he was not coming at the request of the U.S. side.

The Wall Street Journal first reported on Monday t

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