Top U.S. officials all smiles with Chinese Vice Premier Liu He at the start of trade talks in Shanghai.
In a bid to end a year-long trade war U.S. Trade Representative Robert Lighthizer and Treasury Secretary Steven Mnuchin will sit down with Chinese officials in discussions expected to centre on "goodwill" gestures.
The trade dispute has dragged on for more than a year.
The world's two largest economies have been slapping billions of dollars of tariffs on each other's imports, disrupting global supply chains and shaking financial markets.
Two of the "goodwill" gestures expected are Chinese commitments to purchase U.S. agricultural commodities.
And steps by the U.S. to ease some sanctions on Chinese telecoms equipment giant Huawei.
A day before the talks began President Donald Trump had a warning for China.
Advising them not to wait out his first term to finalise any trade deal.
Saying if he wins re-election in the November 2020 U.S. presidential contest, the outcome will be worse for China.