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

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

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

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 ...

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, ...

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

Raw copper materials will not face the high duty that had been expected, but consumer goods prices may still be impacted.

Copper (HG1:COM) futures gained for a second straight day as Chile’s mining giant Codelco dealt with the fallout from a fatal ...

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

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