September 10, 2026
Copper stocks fell after reports the Trump administration will scrap its tariff plan on fears of fueling metals inflation.
What happened
Copper-related shares slid following reports that the Trump administration is abandoning its planned copper tariff. The reversal reportedly stems from concern that duties would push prices higher and stoke metals inflation. The move erased roughly 500 billion dollars of market value across the sector.
Why it matters
A tariff acts as a price floor for domestic producers. Removing it exposes U.S. miners and refiners to global supply, which can lower the price they receive and squeeze margins. For industrial buyers and the economy, the tradeoff is lower input costs and less upward pressure on inflation, which is why the administration is getting cold feet.
The case against
Scrapping the tariff may be seen as a strategic retreat that leaves the U.S. reliant on foreign copper at a time when reshoring manufacturing needs a secure domestic supply. If global demand stays strong and supply tightens anyway, producers lose the tariff benefit without getting a friendlier market. The 500 billion dollar valuation hit could also prove an overreaction if copper prices hold up on their own.
What settles it
Watch for an official White House statement confirming the tariff is dead, along with the international copper price reaction on the LME and COMEX.