Numerous countries around the world are facing the prospect of new tariffs on their exports to the United States on Aug. 7, a potential blow to the global economy, because they haven't yet reached a trade deal with the Trump administration.

The U.S.-EU trade agreement imposes 15 percent tariffs on most European imports, avoiding the 30 percent levies that President Trump had threatened. Critics argue the deal disproportionately favors

After Canada failed to strike a trade deal with Washington, the president raised tariffs on some Canadian exports this week.