China, U.S. hold phone call on trade talks, discuss core issues

BEIJING (Reuters) - China's Vice Premier Liu He, U.S. Trade representative Robert Lighthizer and U.S. Treasury Secretary Steven Mnuchin held a phone call on issues related to a phase one trade agreement on Tuesday, China's commerce ministry said.Both sides agreed to maintain communication on remaining issues on phase one trade deal consultations, the ministry said.The two sides also discussed core issues of concern and reached consensus on resolving relevant problems, it said.Commerce Minister..