U.S. President Donald Trump said he will unveil new tariffs on imported steel next week and on semiconductor chips the following week, broadening his administration’s use of trade barriers. Speaking to reporters aboard Air Force One on his way to Alaska for a meeting with Russian President Vladimir Putin, Trump said the duties will start at a “lower” rate to give manufacturers time to relocate production to the United States before rising sharply later. The president did not disclose the initial rate but referenced earlier proposals of around 100% on chips and added that duties could reach 200% or even 300% if companies keep production offshore. The measures are expected to be imposed under Section 232 of the Trade Expansion Act, which allows tariffs on national-security grounds. Trump indicated that firms investing in U.S. facilities could receive exemptions, and he noted that steel duties were already doubled to 50% earlier this year. Separately, Trump said he has no immediate plan to levy additional tariffs on China or other buyers of Russian oil, citing progress at the Alaska summit with Putin. He left open the possibility of revisiting such penalties in two to three weeks if developments in Ukraine stall.