International

China Warns U.S. of Retaliation Over Iran Sanctions Targeting Chinese Firms

by Redacción Crónica Legal

Geopolitical tensions are escalating once again as Beijing issues a stern warning to Washington. The Chinese government has threatened to take retaliatory measures if its domestic companies are penalized by the Trump administration’s newly expanded secondary sanctions against Iran.

Map of the Strait of Hormuz, a highly strategic maritime chokepoint through which the vast majority of Iran’s oil exports must pass. | Image: Goran_tek-en via Wikimedia Commons (CC BY-SA 4.0).

The latest financial restrictions, announced on Monday by U.S. Treasury Secretary Scott Bessent, specifically target several corporate entities based in both mainland China and Hong Kong. While the current sanctions list notably excludes major Chinese financial institutions, the move has sparked immediate diplomatic friction. China remains Iran’s largest trading partner and currently purchases approximately 90% of all Iranian oil exports.

A Threat to the Trade Truce

This aggressive deployment of secondary sanctions comes at a highly sensitive diplomatic juncture. The friction arises just one month before a highly anticipated summit between President Donald Trump and Chinese President Xi Jinping in Washington.

Global markets are closely monitoring this upcoming meeting, as both leaders are expected to negotiate the extension of a one-year truce in their ongoing trade war—a fragile agreement cemented last May during President Trump’s visit to Beijing. Any significant escalation in U.S. economic penalties against China risks derailing these critical bilateral negotiations.

International Law and Diplomatic Response

Beijing has swiftly condemned Washington’s actions, framing them as a violation of international legal norms. A spokesperson for the Chinese Ministry of Foreign Affairs stated on Tuesday that China «will take all necessary measures to firmly safeguard its rights and interests.»

The Ministry reiterated its longstanding opposition to Washington’s extraterritorial economic policies. «China has made clear on numerous occasions its firm opposition to illegal unilateral sanctions that lack foundation in international law or authorization from the UN Security Council,» the spokesperson emphasized, urging the U.S. administration to prioritize de-escalation and return to the negotiating table.