Bitcoin looked cautious on Thursday as the United States and China announced that they would restart trade negotiations. Chinese Vice-Premier Liu He and the US Treasury Secretary Steven Mnuchin and Trade Representative Robert Lighthizer earlier today spoke over the phone. The two sides decided to meet in Washington in mid-October to negotiate a win-win trade deal. “On the basis of full preparation by the working groups of both sides, efforts striving for substantive progress will be made in the 13th round of China-US high-level economic and trade consultations in early October,” ministry spokesman Gao Feng said in an interaction with the press. “The economic and trade teams from both sides have maintained effective communication.” The news sent Asian markets soaring. …