U.S.-China trade talks ended on Wednesday with negotiators focused on Beijing’s pledge to buy “a substantial amount” of agricultural, energy and manufactured goods and services from the United States, the U.S. Trade Representative’s office said, Reuters reported.

In a statement that gave no specific details on the outcome of three days of talks in China’s capital this week, USTR said that U.S. and Chinese officials discussed “ways to achieve fairness, reciprocity and balance in trade relations”.

No schedule for further face-to-face negotiations was released, and USTR said the American delegation would return to Washington to report on the meetings and “to receive guidance on the next steps.”

The USTR statement contained no details on the amount of commodities, goods and services discussed in the Beijing talks.

Trump, who has accused China and other nations of exploiting the United States in global trade, has said he will raise tariffs to 25 percent from 10 percent on $200 billion worth of Chinese imports if no deal is reached by March 2.