HANOI: The United States and Vietnam have concluded a second round of trade negotiations on tariffs and agreed to continue the talks to address unresolved issues, Vietnam's trade ministry said in a statement on Thursday (May 22). The second round of talks took place in Washington on May 19-22 involving Vietnam's Trade Minister Nguyen Hong Dien and the US Trade Representative Jamieson Greer, the Vietnamese ministry said on its website showing pictures of meetings. "At the end of the negotiation