Copper prices fell during today's trading, following the release of negative economic data in Germany, despite of markets' optimism about trade negotiations between the United States and China.
By 13:54 GMT, the dollar index rose by 0.2% to 97.2 points, reaching a high of 97.3 points and a low of 97.02 points.
On the other hand, Germany's government data showed that factory orders fell by 4.2% in February, the biggest monthly decline in more than two years, in addition to the decline in foreign demand for German goods.
In the meantime, Trump will announce details of the upcoming summit with President Xi Jinping, which is likely include a historic trade agreement between the two countries.
In terms of trading, by 13:51 GMT, copper futures (May delivery) fell by 1.2% to $2.91 per pound, the highest price at $2.95 and the lowest price at $2.90.