China's yuan slipped against the dollar while falling to a near two-year low versus its major trading partners on Friday, as U.S. President Donald Trump and Chinese leader Xi Jinping held a much-anticipated call but left key issues that have stoked tensions between the world's two largest economies unresolved.

Treasury Secretary Scott Bessent, Commerce Secretary Howard Lutnick and U.S. Trade Representative Jamieson Greer will represent the U.S. side in negotiations.