Top U.S. and Chinese negotiators wrapped up their first day of trade talks in more than two months on Thursday, as business groups expressed optimism the two sides might be able to ease a 15-month trade war and delay a U.S. tariff hike scheduled for next week.

U.S. Treasury Secretary Steven Mnuchin and U.S. Trade Representative Robert Lighthizer met with Vice Premier Liu He and other senior Chinese officials for about seven hours at the USTR's headquarters near the White House.

"We had a very, very good negotiation with China," U.S. President Donald Trump told reporters after the talks concluded. He reiterated his plans to meet with Liu at the White House on Friday, regarded as a good sign.