WASHINGTON — President Donald Trump on Thursday talked up China’s commitment to buy more American soybeans. But the tough issues dividing the world’s two biggest economies remained unsettled after two days of meetings between U.S. and Chinese negotiators.

Trump said he expects to meet with his Chinese counterpart, Xi Jinping, to try to reach a final resolution to the six-month trade standoff.

“If we come to an agreement, there is a lot of work that has to be done,” U.S. Trade Representative Robert Lighthizer told reporters, summarizing what he said were two days and an evening of “very intense, detailed and specific discussions.”

“It’s my judgment that we made headway,” he said, declining to outline specific areas where he thought the two sides had made progress. Lighthizer reiterated that a March 2 deadline stands and said it would be up to Trump to decide how to proceed if a comprehensive trade deal with China remained out of reach.

March 2 is the point at which the U.S. would escalate import taxes on $200 billion in Chinese goods if there was no deal. The penalties are scheduled to jump from 10 percent to 25 percent.

“He’ll make that decision when we get there,” Lighthizer said of Trump. He spoke after the talks ended and Trump met with the Chinese delegation.