insert_link World U.S president Joseph Biden wants to triple US tariffs on Chinese steel and aluminum, increasing the import tax to 25%. U.S president Joseph Biden wants to triple US tariffs on Chinese steel and aluminum, increasing the import tax to 25%. Biden is visiting steelworkers in the battleground state of Pennsylvania as he looks to win over unions as part of reelection bid. Nick Harper reports from Washington. today18 April, 2024