President Donald Trump is set to meet with European Commission chief Ursula von der Leyen in Scotland to discuss trade.

T rump’s so-called reciprocal tariffs are scheduled to go into effect on August 1 after a 90-day delay—just as American families begin back-to-school shopping—and could hike up the cost of consumer goods imported from other countries.

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