Copper prices edged up in rangebound trade on Tuesday, as investors sought clarity over some key aspects of the interim Sino-U.S. trade deal announced last week. SEE MORE London copper prices dipped on Tuesday as investors waited for more clarity on the interim Sino-U.S. trade deal announced last week amid differing views from both sides. SEE MORE The so-called Phase One trade deal between Washington and Beijing has been “absolutely completed,” a top White House adviser said on Monday, adding that U.S. exports to China will double under the agreement. SEE MORE Oil prices trickled a fraction lower on Tuesday but remained near a three-month high as investors kept the faith with hopes that a fully fledged U.S.-China trade deal is in the pipeline, set to stoke oil demand in the world’s biggest economies. SEE MORE Vietnam ran a trade deficit of more than US$31 billion with neighboring China between January and November this year, a record high compared with the same periods in previous years. SEE MORE