The European Commission on Sunday called on the United States to clarify its position following the recent US Supreme Court decision invalidating the tariffs imposed by the US administration on imports.

In a statement, the EU executive requested “full clarifications” on the measures Washington now intends to take. Brussels stressed that European companies and exporters must benefit from fair treatment, as well as the predictability and legal certainty provided for under the trade agreement concluded between the two sides in August 2025.

The European Union underlined that honoring mutual commitments is a fundamental principle of transatlantic relations. As the United States’ leading trading partner, the EU expects Washington to respect the terms of the joint declaration, just as it says it upholds its own commitments. According to the Commission, the current uncertainty undermines transatlantic trade and investment and fails to ensure balanced and mutually beneficial economic relations.

Brussels also insisted that EU products should continue to receive the most competitive treatment, with no increase in duties beyond the overall ceiling agreed upon last summer. The EU reiterated its long-standing position that tariffs act as taxes that raise costs for consumers and businesses and can destabilize global markets when applied unpredictably.

The Commission said it would continue efforts to reduce tariff barriers in line with the joint declaration, prioritizing the preservation of a stable, rules-based transatlantic trading environment.

On Friday, the US Supreme Court ruled that the president had exceeded his authority by imposing broad tariffs on imports from nearly all of the country’s trading partners. The Court found that the 1977 International Emergency Economic Powers Act could not serve as a legal basis for setting such duties.

The highly anticipated ruling could have significant implications for the US economy, consumers and the country’s future trade policy, observers noted.