Trump says US will impose 10% tariffs on $300 billion of Chinese goods starting September 1

“Trade talks are continuing, and during the talks the U.S. will start, on September 1st, putting a small additional Tariff of 10% on the remaining 300 Billion Dollars of goods and products coming from China into our Country…We look forward to continuing our positive dialogue with China on a comprehensive Trade Deal, and feel that the future between our two countries will be a very bright one!” Trump said in a tweet on Thursday.

The surprise tariff announcement came after the U.S. and China restarted trade talks in Shanghai this week, the first in-person trade talks since a G-20 truce. The White House said on Wednesday the meetings were “constructive,” adding that China confirmed their commitment to increase purchases of U.S. agricultural exports. Trade negotiations will continue in Washington in early September.

The trade battle between the world’s two largest economies has dragged on for more than a year and a half. Trump shocked the markets in May by hiking tariffs to 25% from 10% on $250 billion in Chinese goods. China immediately retaliated and said a trade deal will not be reached unless the existing duties were stripped.

Chinese purchase of U.S. agricultural products remains a big sticking point in the trade conflict.Trump claimed Thursday China agreed to buy “in large quantities, but did not do so.” China, however, insisted millions of tons of U.S. soybeans have been shipped to China since July 19, and many companies have made orders of American soybeans, cotton, pork and sorghum, Chinese state media Xinhua said.

Trump’s Thursday tweet comes in the wake of a meeting this morning at which the president got a report from Treasury Secretary Mnuchin and Trade Representative Robert Lighthizer on their meetings in Shanghai this week, a White House official told CNBC’s Eamon Javers.

*story by CNBC