China Orders State Firms to Ignore US Iran Sanctions in Historic Defiance
Beijing's first invocation of blocking statute marks shift from covert evasion to open challenge of dollar-based sanctions enforcement
China’s Ministry of Commerce issued a formal order on May 2, 2026, instructing Chinese companies to disregard US sanctions on five major refineries purchasing Iranian crude, marking the first time Beijing has invoked its 2021 blocking statute and escalating US-China economic confrontation beyond trade tariffs into direct defiance of sanctions enforcement.
The directive shields Hengli Petrochemical, Shandong Jincheng Petrochemical Group, Hebei Xinhai Chemical Group, Shouguang Luqing Petrochemical, and Shandong Shengxing Chemical from US secondary Sanctions imposed in April 2026. Hengli’s Dalian facility alone processes 400,000 barrels daily and has generated hundreds of millions in revenue for Iran’s military since 2023, according to the Washington Times. China absorbed more than 80% of Iranian oil exports in 2025, per Al Jazeera citing Kpler data.
400,000 bbl
80%+
$91.20
“This is unprecedented. It’s a major escalation in terms of China’s response to US economic statecraft,” Max Meizlish, research fellow at the Foundation for Defense of Democracies, told Fox News. “It is a measure of defiance by Beijing.”
From Covert Workarounds to Legal Shield
The May 2 order represents China’s first deployment of its Rules on Counteracting Unjustified Extraterritorial Application of Foreign Legislation, enacted in January 2021 but dormant until now. The blocking statute prohibits Chinese entities from recognising, enforcing, or complying with foreign sanctions Beijing deems illegitimate, according to legal analysis from Stephenson Harwood. Companies face a conflict-of-laws trap: comply with Beijing’s directive and risk US penalties, or follow US sanctions and face Chinese enforcement action.
Beijing previously tolerated a grey market of ship-to-ship transfers, flag switching, and front companies to obscure Iranian crude flows. The Commerce Ministry’s explicit legal shield marks a qualitative shift from tacit non-cooperation to formalised resistance. Cui Fan, a professor advising China’s Commerce Ministry, told Fortune that US sanctions methods have become “increasingly heavy-handed” and threaten “China’s Energy Security and development interests.”
“It’s putting firms in China in the position where they either comply with the CCP order or the US order and either way there could be consequences.”
— Max Meizlish, Foundation for Defense of Democracies
Accelerating Financial System Bifurcation
The directive coincides with infrastructure buildout for dollar-alternative settlement. Nearly 90% of Russia-China transactions now clear in yuan or rubles, according to OANDA analysis from November 2025. Iran-China oil trade increasingly uses renminbi settlement, China’s Cross-Border Interbank Payment System, and barter-like arrangements designed to bypass SWIFT and US correspondent banking, per Juan Cole.
Brent crude fell 2% to $91.20 on May 29, down 17% for the month—the steepest monthly decline since 2020—while WTI traded at $87.36 on May 31, according to Trading Economics and OilPriceAPI data. The drop reflects oversupply concerns as sanctioned barrels continue flowing through alternative channels, though analysts warn bifurcation could eventually create separate pricing regimes for dollar-denominated and yuan-settled crude.
China’s blocking order arrived two weeks after US President Donald Trump and Chinese President Xi Jinping held a May 2026 summit in Beijing that maintained a fragile truce on trade. The Trump administration subsequently paused higher tariffs for 60 days but left in place 30% combined tariffs on Chinese goods, alongside ongoing export controls on advanced semiconductors and AI chips. Beijing’s decision to invoke the blocking statute—dormant for five years—signals willingness to escalate beyond commercial disputes into direct challenges to US financial architecture.
Implications for Global Sanctions Regime
The precedent extends beyond energy markets. If Chinese firms can operate sanctioned Iranian refineries without losing access to dollar clearing, other nations facing US secondary sanctions—from Venezuela to Zimbabwe—gain a tested playbook for resistance. The Atlantic Council tracks over 600 tankers in Iran’s shadow fleet, many operating under flags of convenience with Chinese buyers as ultimate counterparties.
Liu Pengyu, spokesperson for China’s embassy in Washington, stated that “normal economic and trade cooperation conducted by Chinese enterprises with relevant countries should not be subject to interference or disruption,” framing the directive as defensive rather than confrontational. Yet the effect is to nullify US leverage over third-party transactions that never touch American soil or financial institutions.
- First invocation of China’s 2021 blocking statute creates legal framework for systematic sanctions defiance
- Hengli Petrochemical’s 400,000 bbl/day capacity remains online despite US designation, eliminating deterrent effect
- Accelerated yuan settlement infrastructure reduces exposure to dollar-clearing chokepoints
- Precedent available to other sanctioned regimes seeking Chinese state backing for evasion
What to Watch
Treasury Department enforcement actions in the 60-90 days following the directive will test US willingness to impose costs on Chinese banks facilitating transactions with sanctioned refineries. Secondary sanctions on Chinese financial institutions carry systemic risk given interconnection with global dollar markets, making escalation politically fraught. Track Brent-WTI spreads and Dubai-Brent differentials for early signals of market bifurcation, as sanctioned barrels trading at steeper discounts create arbitrage opportunities that erode pricing transparency. Finally, monitor yuan-denominated crude futures volumes on the Shanghai International Energy Exchange—sustained increases would indicate structural shift toward parallel pricing mechanisms, reducing dollar dominance in global energy markets. These indicators will clarify whether Beijing’s legal defiance translates into durable infrastructure for a yuan-based sanctions-resistant trade system.