U.S.-China trade talks in London this week are expected to take up a series of fresh disputes that have buffeted relations, threatening a fragile truce over tariffs. Both sides agreed in Geneva last month to a 90-day suspension of most of the 100%-plus tariffs they had imposed on each other in an escalating trade war that had

Trade negotiations between the United States and China stalled shortly after a May 12 agreement between both countries to reduce their tariff rates in order to have talks.