A slew of countries will face steep levies, including a 50% tariff on imports from Brazil and a 30% tariff on the European Union.

Trump has sent letters to leaders of dozens of countries outlining the tariff levels set to begin on Aug. 1. In recent months, Trump has rolled back some of his steepest tariffs, meaning delays could be possible in the case of the Aug. 1 deadline. The Trump administration appears to have stood largely behind the deadline in recent days, however.

If he moves forward with the tariffs, it could have ramifications for nearly every aspect of the global economy.