25% US Tariffs on Steel, Aluminum Take Effect Washington, 12 Mar (ONA) --- US President Donald Trump's 25% tariffs on steel and aluminum imports came into effect today, taking the United States a step closer to a trade war with its major partners. On 10 February 2025, Trump signed two executive orders imposing 25% tariffs on steel and aluminum imports from all countries, effective today (12 March 2025), "without exceptions or exemptions." The hefty tariffs are ...