The three-day talks in Beijing that wrapped up on Wednesday were the first face-to-face negotiations since U.S. President Donald Trump and his Chinese counterpart Xi Jinping met in Buenos Aires and agreed on a 90-day truce in a trade war.

This week's talks were lengthy because both sides were serious and honest, the ministry's spokesman Gao Feng told reporters.

(Reporting by Yawen Chen and Martin Pollard; Writing by Ryan Woo)