President Donald Trump has signed an executive order doubling tariffs on imported steel and aluminum to 50 percent, effective June 4, 2025.

The move aims to protect U.S. national security by curbing what the administration describes as a threat from excessively low-priced metal imports that undermine domestic industries.

Trump had said on May 30 that he would double tariffs as he announced that U.S. Steel would be allowed to merge with Japan's Nippon Steel.

Why It Matters

The order builds on previous tariffs imposed under Section 232 of the Trade Expansion Act, with officials citing the need to bolster American steel and aluminum production capacity for economic and defense reasons.

Business leaders have previously expressed anxiety over the plan, warning of increased costs f

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