View / Latest Iran sanctions risk economic showdown with China

Tim McDonnell
Tim McDonnell
Climate and energy editor, Semafor
Aug 25, 2026, 4:21am EDT
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A drone view shows a Chinese-flagged oil tanker moored at an oil terminal at Tsing Yi port, with Tsing Ma bridge in the background, in Hong Kong, China
Joyce Zhou/Reuters

There’s a China-sized hole in the Trump administration’s plan to wage an “economic D-Day” against Iran. When US Treasury Secretary Scott Bessent announced new sanctions on Monday targeting a range of individuals and entities alleged to support Tehran, and threatened more to come, Beijing was conspicuously absent from the list.

China is Iran’s most important economic lifeline, and prior to the war, the two countries had a mutually beneficial oil arrangement: China bought nearly all the crude Iran managed to export, at a significant discount in exchange for ignoring Western sanctions, and Iranian oil provided about 12% of China’s imports.

“We are level-setting with every country to tell them our expectations,” Bessent said. This year the US did step up sanctions on one of China’s biggest refineries over its purchases of Iranian crude, and the US naval blockade in the Strait of Hormuz has for now effectively halted most Iranian crude exports. But with Chinese leader Xi Jinping due to meet with Trump in Washington next month, the administration is clearly aiming to avoid a full-on economic war with Beijing — and that puts its Iran strategy at risk.

“Only measures that materially sever Iran-China trade — including sanctions on Chinese banks, state-owned enterprises (SOEs) and economically critical ports/terminals — would accelerate Iran’s economic breaking point, and we do not expect Washington to go that far,” Rapidan Energy Group analysts wrote on Monday.

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