US Sanctions on Iran-Linked Chinese Entities Raise Risk of US-China Economic Escalation

Washington’s new measures seen testing a recent bilateral detente with Beijing, and room for escalation remains, threatening trade, payments and supply chains

1. Broad sanctions on Iran: The US imposed sanctions on nearly 60 Iran-linked entities covering digital assets, technology, gold, aviation and shipping.

2. Chinese entities targeted: More than a dozen Hong Kong- and mainland China-based companies and individuals were sanctioned for allegedly supporting Iran’s procurement networks and oil trade.

3. Technology procurement: Hong Kong-based Sweet Ocean was accused of helping procure sensitive equipment, including laser optics, for Iran’s heavily sanctioned Malek Ashtar University.

4. Shadow banking network: Hong Kong firms Feili Co, Minvur and Feisu allegedly transferred funds to Sweet Ocean and facilitated payments through Iran’s shadow-banking system.

5. Iranian oil shipments: Hong Kong-based Riqueza and China-based Lilimoon Navigation were accused of owning foreign-flagged vessels transporting Iranian crude to China.

6. Secondary sanctions warning: The US Treasury warned countries and companies involved in identified Iran-related activities that failure to withdraw could result in secondary sanctions.

7. China condemns sanctions: Beijing called the measures “illegal unilateral sanctions” and vowed to take necessary steps to protect its interests.

8. China’s key concerns: Beijing wants to protect energy security, Chinese companies’ economic interests and its economic sovereignty from US pressure.

9. Major escalation risk: Analysts said sanctions targeting large Chinese banks or major corporations could trigger a much stronger Chinese response.

10. Iran oil trade likely to continue: Despite US pressure and supply disruptions, China is expected to continue importing Iranian crude, given its importance as Tehran’s largest oil buyer.

11. Blocking order as retaliation: China could use its blocking order to instruct domestic companies to disregard certain US sanctions.

12. Rare earth leverage: Beijing could tighten export controls and end-use/end-user reviews on rare earths and strategic minerals, potentially affecting US defence and high-tech industries.

13. Reduce dollar dependence: China may accelerate expansion of its Cross-border Interbank Payment System (CIPS) and increase bilateral local-currency settlements.

14. Overall impact: The sanctions could complicate the fragile US-China diplomatic détente, with the risk of significant economic retaliation rising sharply if Washington targets major Chinese financial institutions.

[ABS News Service/28.08.2026]

The United States has imposed sweeping sanctions on nearly 60 Iran-linked entities, spanning digital assets, technology, gold, aviation and shipping, as Washington seeks to “sever every economic lifeline” that sustains Tehran.

Beijing denounced the measures, with the Chinese foreign ministry calling them “illegal unilateral sanctions” and vowing to “take all necessary measures to firmly safeguard its rights and interests”.

With the fresh sanctions complicating an already delicate diplomatic detente, we examine the Chinese entities targeted, delineate Beijing’s red lines and assess the potential economic countermeasures that China’s leadership could utilise if tensions escalate.

How do Washington’s new sanctions on Iran affect China?

More than a dozen Hong Kong- and mainland-based entities and individuals were named in the latest round of sanctions, primarily for helping to procure sensitive goods or for shipping Iranian oil.

This included Hong Kong-based Sweet Ocean, which the US alleged had acted as an intermediary for the acquisition of sensitive equipment, such as laser optics, bound for the heavily sanctioned Malek Ashtar University in Iran.

Other Hong Kong-based firms, including Feili Co, Minvur and Feisu, allegedly transferred capital to Sweet Ocean and acted as front companies to facilitate payments for Iran’s “shadow banking” networks.

Also on the list were Hong Kong-registered Riqueza and China-based Lilimoon Navigation, which US authorities accused of owning foreign-flagged ships transporting Iranian crude to China – Tehran’s biggest oil buyer.

Washington also signalled a readiness to deploy secondary sanctions on countries that refuse to cut economic ties with Iran.

“Every country will be given a defined timeline to shut down the Iran-related activity we have identified. If they fail to act, Treasury will act,” the US Department of the Treasury said in a statement.

Where does the escalation risk lie for Beijing?

Analysts suggest that Washington remains wary of jeopardising the stability brokered during US President Donald Trump’s visit to Beijing in May and ahead of President Xi Jinping’s planned trip to the US next month. Still, Beijing’s red lines are well defined.

“Harsher US actions – for example, targeting large Chinese banks or companies – will certainly invite a harsher response,” said Xu Tianchen, senior economist at the Economist Intelligence Unit, noting how such moves would cut off affected major Chinese entities from the US financial system.

However, Xu added that if sanctions remained confined to smaller companies, Beijing’s pushback was likely to be symbolic.

While the US has thus far refrained from targeting Chinese financial institutions facilitating the Iranian oil trade, US Treasury Secretary Scott Bessent, when asked about non-compliant Chinese banks and shipping companies, warned that “no one is above the reach of US sanctions”.

Cui Shoujun, a professor at Renmin University of China’s School of International Studies, said Beijing’s core objectives were to safeguard national energy security, protect economic interests of Chinese enterprises, and prevent the US from infringing upon China’s economic sovereignty.

Despite the sanctions, some analysts said they expected China to maintain its crude intake from Tehran, even as US naval pressure has limited the supply flow.

What are China’s options for economic retaliation?

Should tensions boil over, China could move to enforce a blocking order, instructing companies to disregard US sanctions, Xu said.

Beijing first deployed this regulatory lever in May, striking back against US sanctions on Hengli Petrochemical (Dalian) Refinery, a subsidiary of a private chemical giant, for buying Iranian oil.

“It also retains the trump card of rare earth export controls – the existence of which is the very reason the US won’t go too far,” Xu added.

Cui similarly noted that China could tighten enforcement and impose strict end-user and end-use reviews on key strategic minerals and rare earths involved in advanced manufacturing, thereby restricting the flow of these materials to certain US defence and hi-tech-related entities.

He added that, to mitigate risk, Beijing could be accelerating the expansion of its Cross-border Interbank Payment System to reduce reliance on US dollar clearing networks by increasing bilateral local-currency settlements.