U.S. President Donald Trump said he'll extend a deadline to raise tariffs on Chinese goods beyond this week, citing "substantial progress" in the latest round of trade talks that wrapped up Sunday in Washington.

"The U.S. has made substantial progress in our trade talks with China on important structural issues including intellectual property protection, technology transfer, agriculture, services, currency, and many other issues," Trump said in a Twitter posting on Sunday evening. "As a result of these very productive talks, I will be delaying the U.S. increase in tariffs now scheduled for March 1."

If the sides make further headway in negotiations, Trump said he and Xi planned to meet at his Mar-a-Lago resort in Florida to conclude an agreement, though he didn't offer any details on the timing of the meeting or how long he expects the tariff extension to last.