Full agreements have yet to be reached with the U.S.’s three largest trading partners, Canada, China and Mexico; some Canadian imports have been subject to a 35 percent tariff since early August.

Most of the new duties kicked in Thursday, hitting countries with elevated rates that mark a departure from long-standing trade norms.

President Donald Trump’s latest tariffs are ready to launch. Last week, Trump signed executive orders slapping tariffs of between 10% and 41% on a range of countries, but delayed their start date until Aug.