06:33 AM EST, 02/10/2025 (MT Newswires) -- Shares of American steelmakers advanced in Monday's premarket activity ahead of an expected imposition of 25% tariffs on steel and aluminum imports to the US by President Donald Trump.

Cleveland-Cliffs ( CLF ) shares led the sector-wide surge, increasing more than 9.5% before the opening bell.

Nucor ( NUE ) shares were up more than 8%, Century Aluminum ( CENX ) nearly 8%, Steel Dynamics ( STLD ) and US Steel (X) around 6%.

Luxembourg-based Arcelor-Mittal (MT) shares were down nearly 1%.