A U.S. decision last week to exempt refined copper metal from import duties is in contrast to an earlier move to levy steep ...

The once-mighty premium U.S. copper enjoyed over the global benchmark slid on Thursday as markets clawed back months of gains ...

This sudden policy change was a brutal shock to traders. For weeks, market speculation about a broad, all-encompassing tariff had fueled a rally, sending COMEX copper futures to record highs. Traders, ...

Aurubis says it expects the higher contributions from sulfuric acid, copper products and metals to continue for the rest of ...

Comex copper plunged over 19% in minutes after Trump excluded refined metal from his planned import tariff - the largest ...

U.S. copper prices plunged by as much as 20% in late trading Wednesday after President Trump said he would begin 50% tariffs ...

Copper traders were caught flat-footed after refined copper was exempted from Trump's new tariffs. The exemption triggered a ...

The U.S. tariffs have caused COMEX copper prices to experience extreme price variance over the past months, leading to new ...

U.S. copper prices surged due to fears of a 50% tariff on imported copper, but a surprise exemption for raw copper materials ...

US President Donald Trump's decision to exclude refined metal from his proposed import tariff led to an immediate and ...

Since June, aluminum metal shipped to the US, where smelters face higher electricity bills than copper producers, has ...

By Lewis Jackson BEIJING (Reuters) -Benchmark copper prices on the London Metals Exchange rose at the open on Thursday as ...