Copper prices rose during today as global markets recovered temporarily from the concerns about the trade war.
Despite optimism that a trade deal could be reached with Beijing, US President Donald Trump's threats have cast a shadow over markets.
Trump said his administration would impose more tariffs on its imports from China if the head of the country, Xi Jinping, did not attend the G20 summit which will be launched later this month.
Separately, by 15:02 GMT, the dollar index (against a number of major currencies) rose by 0.1% to 97.07 points, reaching a high of 97.08 points and a low of 96.8 points.
In terms of trade, by 15:00 GMT, copper futures (July delivery) rose by 0.2% to $2.659 per pound, the metal hit a high of $2.662 and a low of $2.632.