Japan is "deeply concerned" about global economic fallout from U.S. President Donald Trump's trade tariffs, Finance Minister Katsunobu Kato said on Thursday in the government's strongest warning yet as the two nations began trade talks.

Passport explains how the Trump administration's new U.S. tariffs are shaking up e-commerce and affecting brands, and suggests strategic moves you can make to keep up in a shifting market.

The White House said it was eyeing tariffs on semiconductor chips, which control electrical currents and are used in computers, cell phones and cars.