Chinese refiners made themselves sanction-proof by court order

Two orders currently govern Hengli Petrochemical's refinery on Dalian's Changxing Island, and they command opposite things. The contradiction cannot hold forever, and both capitals are betting the other blinks first.

In April, the US Treasury put Hengli Petrochemical (Dalian) Refinery on its SDN blacklist for allegedly buying billions of dollars of Iranian oil, freezing anything it owns inside American jurisdiction and cutting it off from dollar clearing; the Treasury action came on April 24. On May 2, China's Ministry of Commerce issued its first-ever blocking order, prohibiting anyone under Chinese jurisdiction from recognizing or complying with those same sanctions under MOFCOM Announcement No. 21 of 2026.

The trigger is this month's escalation. Treasury Secretary Scott Bessent told CNBC on August 21 that the administration is imposing the "toughest sanctions in history" on Iran and warned any country providing a "lifeline" would face America's full enforcement might, in reporting carried by Asia Times. Days later, Treasury added Hengli's refinery to the list outright, the most significant strike yet against China's refining industry, weeks before a planned Trump-Xi meeting, as Bloomberg's account was carried by Asia Times on August 22.

The pressure underneath runs back years. The US-China Economic and Security Review Commission reported in March, in figures cited by Investing.com on August 16, that China bought more than $30 billion of Iranian oil last year, taking nearly all of Tehran's exports, and that independent refiners pocket discounts of up to 25 percent on sanctioned crude.

Washington wants Iranian oil revenue choked until Tehran's government buckles, and sees China's teapot refineries as the pipeline that defeats the squeeze. OFAC has designated five of them since maximum pressure resumed — Shandong Shouguang Luqing, Shandong Shengxing Chemical, Hebei Xinhai Chemical, Shandong Jincheng Petrochemical and Hengli's Dalian refinery — according to an OFAC alert carried by Sanctions.com on April 28.

Beijing wants discounted energy security and, just as much, a legal precedent: that American sanctions stop at the Chinese border. The refiners themselves want both discounts and survival. Caixin reported on April 27 that Hengli denied buying Iranian oil at all, while trade sources told Reuters, in reporting carried by CNBC Africa, that it was buying West African crude through middlemen to keep other customers comfortable.

What the order binds

The blocking order binds Chinese entities. A Chinese bank cannot refuse Hengli's yuan, and a Chinese shipper cannot refuse its cargo, citing US law. It writes no penalty for overseas counterparties, so a Singapore trader or a European bank still faces one clear consequence for dealing with an SDN-listed firm and only silence if it refuses. Facing one threat and one blank, overseas parties keep complying with Washington, as Shan Jiang argued in a CISES policy brief published July 12. Hengli itself proved the point by seeking delisting in America rather than daring anyone to defy the blacklist.

The ground under that calculation is shifting, judicially. Article 12 of China's Anti-Foreign Sanctions Law lets Chinese companies sue anyone who implements foreign sanctions against them, and courts are using it. Before the Nanjing Maritime Court, a Swiss counterparty that withheld almost $12 million from a listed Chinese contractor over sanctions fears watched its vessel get arrested mid-contract, Foreign Policy reported on August 17.

A Shanghai court ruled against a Singaporean shipping firm that refused delivery to a US-listed Hong Kong manufacturer, and this June the Supreme People's Court named that case among its six representative maritime judgments, telling every lower court how to treat sanctions-driven refusals. HY Energy Group has sued Citigroup in Shanghai and JPMorgan Chase in Beijing over $40.5 million in frozen payments, again per Foreign Policy's August 17 report. Compliance with Washington inside China is now litigation risk.

The European precedent

Europe tried this exact move in 2018, when the European Union forbade its companies from obeying restored US sanctions on Iran after the nuclear deal exit. European banks quit Iran anyway, because the American penalty was concrete and Brussels' was theoretical, and the blocking statute died as paper. That is the outcome Beijing is racing to avoid, and so far it has dodged it by design.

Foreign Policy noted on August 17 that the five targeted refiners have thin exposure to the dollar system, so there are few European-bank moments to lose. The counter-example cuts the other way too. Unlike the EU statute, China's version is broad, discretionary and now backed by courts willing to seize ships, which means the Chinese threat is becoming concrete precisely where the European one never did.

Who pays

Chinese banks and traders come first: they must process Hengli's business in yuan and renminbi rails they already run, cheap compliance. Multinationals with China revenue, the Citigroups and Maersks of the world, inherit a genuine legal dilemma next, since obeying OFAC now invites Chinese lawsuits and asset arrests while obeying Beijing invites Treasury action; Foreign Policy reported on August 17 that Western firms are quietly rewriting contract clauses to arbitrate such disputes outside both jurisdictions.

If Washington escalates to secondary sanctions on the foreign middlemen who move Hengli's non-Iranian crude, it attacks the one seam where the blocking order cannot follow, and forces the confrontation Bessent says he wants ahead of the midterms.

If Beijing holds, the cost falls on the shadow fleet and its insurers, already navigating a Hormuz blockade that has kept daily transits in the single digits, per Reuters reporting carried by Asia Times on August 22, plus on multinational banks caught between two statutes. Who profits? The teapots keep their discounted crude, yuan-clearing banks in Shanghai win the settlement flow dollars used to carry, and Middle Eastern and West African suppliers sell China replacement barrels at a premium.

Crude sits about 30 percent above its pre-war level, Asia Times noted on August 22, so every week the legal standoff persists, the discount spread between sanctioned and unsanctioned grades widens and pays whoever can touch both.

If the read is right, the observable signs follow. More suits like HY Energy's filed against foreign banks in Chinese courts, MOFCOM extending blocking orders toward larger globally integrated Chinese firms, and Hengli's yuan-settled crude purchases continuing without interruption through the autumn. What breaks the read. A genuine cutoff of Hengli's overseas crude supply forcing it to beg for delisting, or Treasury sanctioning a major non-Chinese intermediary and watching Beijing fail to retaliate. Either would prove the court-order shield is parchment.

The last absorbers are physical. The crude tanks of Shandong, the tankers darkening their transponders off Dalian, and the clerks in two financial systems processing instructions their own laws call illegal. Sanctions used to end an argument; here they have become one.

The venue where it gets decided is no longer a treasury department but a courtroom in Nanjing, where a Swiss ship learned what refusing costs.