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

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

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

Front Month Comex Copper for August delivery gained 2.70 cents per pound, or 0.62% to $4.3910 today --Off 24.23% from its 52-week high of $5.795 hit Wednesday, July 23, 2025 ...

US copper prices plunged by as much as 20% after President Trump said he would impose 50% tariffs on imports of semi-finished ...

US Comex copper futures gained 0.8% to $4.42 a lb by 1205 GMT, bringing the premium of Comex over LME copper to $58 a ton. Investors are also eyeing developments in Chile, the world’s largest copper ...

Copper traders were caught flat-footed after refined copper was exempted from Trump's new tariffs. The exemption triggered a 20% drop in copper futures on the COMEX exchange. Traders now face excess ...

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

BEIJING/LONDON (Reuters) -Benchmark copper prices on the London Metals Exchange rose at the open on Thursday as markets ...

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

Copper recouped some losses, but remained lower on week after President Trump’s surprise decision to exempt refined forms of ...

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