19JUL

Three days to the Hengli cliff

4 min read

13:35UTC

OFAC General Licence V on Hengli expires end of Sunday 24 May; from Monday, any dollar payment to China's second-largest independent refinery costs the clearing bank its US access.

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Key takeaway

Sunday 24 May is the first hard-dated OFAC-MOFCOM enforcement moment of the Iran war.

OFAC (the Office of Foreign Assets Control, the US Treasury bureau that administers sanctions) issued General Licence V on 24 April 2026 alongside the SDN designation of Hengli Petrochemical (Dalian) Refinery Co., Ltd., authorising a 30-day wind-down of US-person and US-dollar transactions with the refinery. That clock runs out at the end of Sunday 24 May. From Monday, any non-US bank that processes a single Hengli dollar payment becomes exposed to secondary sanctions and loses its US correspondent access.

Hengli is China's second-largest independent refinery and the first mainland Chinese refinery OFAC has designated; earlier rounds carefully avoided mainland targets and routed designations through Hong Kong, UAE and Marshall Islands shells . MOFCOM (China's Ministry of Commerce) closed the legal gap on 2 May with Announcement No. 21, directing Hengli and four sister refineries (Luqing, Jincheng, Xinhai, Shengxing) to disregard the US sanctions under China's 2021 Blocking Rules. MOFCOM and OFAC now collide on the same dollar wire from Monday morning.

Hengli Petroleum, the refinery's Singapore trading arm, has begun laying off staff in anticipation of the shutdown, Manifold Times reported ¹. The corporate-level retreat sits oddly against Beijing's posture: Iran's appointment of a new ambassador to Beijing on 18 May was briefed as 'unprecedented' commitment to the China relationship , and MOFCOM's blocking statute is engineered for exactly this enforcement moment. Hengli Petroleum Singapore began layoffs at the trading desk on 20 May regardless.

The nearest precedent is OFAC's April 2018 designation of Rusal, Russia's largest aluminium producer. Aluminium prices spiked roughly 35 per cent in three weeks; Glencore and other counterparties unwound positions within days; the sanctions forced the removal of Oleg Deripaska's controlling stake before the wind-down expired. The transmission mechanism was dollar clearing, not trade flows, which is why the Singapore layoffs are the operational tell. General Licence V is the only Iran-touching US instrument with a working clock; every other lever, from the unfiled Murkowski AUMF to the oral Pentagon order, runs on Trump's verbal track . OFAC's wind-down clock cannot be postponed by a Truth Social post.

Deep Analysis

In plain English

When the US government punishes a foreign company for buying Iranian oil, it issues a 'designation' banning American banks from handling any money going to that company. Normally there is a 30-day grace period to wind down existing deals. That grace period for Hengli, a giant Chinese oil refinery in Dalian, runs out on Sunday 24 May. After Sunday, any bank that processes a dollar payment connected to Hengli can be cut off from the US financial system. That matters because most international payments, even between non-American companies, still travel through US-linked banks. China's government told Hengli to ignore the US order. The difficulty is that Hengli's trading office in Singapore handles international payments in a jurisdiction that cannot use China's legal shield against US enforcement.

Deep Analysis

Root Causes

OFAC's path to Hengli runs through a structural gap in the MOFCOM blocking order: Announcement No. 21 directs Chinese entities not to comply, but it cannot immunise the dollar-clearing layer. Hengli's Singapore trading arm operates in a jurisdiction that does not recognise China's blocking statute as a defence against US regulatory action.

China's de-dollarisation project remains incomplete at the clearing-bank layer. Beijing has built yuan-denominated crude pricing at the Shanghai International Energy Exchange since 2018, but 80% of global oil trade still prices and clears in dollars. Hengli's exposure exists precisely because China's oil-import infrastructure has not yet migrated to yuan settlement at the clearing-bank layer. MOFCOM's order arrived before the infrastructure it needs to function.

What could happen next?

Risk
Chinese banks with US correspondent relationships face a binary after 24 May: refuse Hengli dollar settlement and breach MOFCOM's blocking order, or process it and trigger OFAC secondary sanctions. Either path creates legal exposure in at least one jurisdiction.
Immediate · Assessed
Precedent
Hengli is the first mainland Chinese refinery to face a hard OFAC deadline. If enforcement holds without a negotiated carve-out, it establishes that the secondary-sanctions mechanism can target MOFCOM-shielded entities, changing the risk calculus for all five refineries named in Announcement No. 21.
Short term · Reported
Consequence
Hengli's removal from the Iranian crude-buyer pool tightens an already-constrained sanctioned-oil market, compounding the IEA's 246-million-barrel inventory draw recorded across March and April 2026.
Short term · Reported
Risk
Beijing may escalate retaliatory trade measures against US firms in China if OFAC enforcement is seen to override MOFCOM's sovereign blocking order without diplomatic resolution.
Medium term · Suggested

Source Landscape

This story draws on neutral-leaning sources

Primary parallel: The April 2018 OFAC designation of Rusal, the world's largest aluminium producer outside China, offers the closest structural precedent. Rusal's designation triggered a 35% aluminium price spike within days. OFAC was ultimately forced to roll back the designation after markets demonstrated the consequence was disproportionate. The Hengli case adds a new element absent in 2018: a formal sovereign blocking order from a P5 member, which Deripaska could not invoke.

Counter-parallel: The 2012 secondary-sanctions campaign against Iran's central bank succeeded because no sovereign counterweight existed; every financial institution caught between US and Iranian jurisdictions chose the larger market.

Beijing's MOFCOM blocking order replicates the EU Blocking Statute 1996 model, where European firms were legally shielded from US secondary sanctions on Cuba. That model ultimately failed European firms chose US market access over Brussels protection but China's domestic market size changes the calculus.

Immediate impact: Hengli processes approximately 400,000 barrels per day, making it a meaningful consumer of Iranian crude in the current supply-disrupted market. Its Singapore trading arm's layoffs signal the market has already priced in a functional shutdown of the dollar-payment channel.

Structural analysis: The Rusal precedent showed a 35% price spike in the affected commodity within days of designation. Hengli's dollar shutdown would remove a significant buyer of sanctioned Iranian crude, compounding the IEA's 14.4 million barrels per day disruption figure .

Unlike aluminium, crude has alternative buyers across Asia; the structural effect concentrates on Chinese refining margins rather than the global crude price, where the IEA already projects a deficit through Q4 2026.

Consensus view: The Carnegie Endowment for International Peace's Shannon Tiezzi and Stimson Center analysts assess the Hengli expiry as the first instance of OFAC secondary sanctions creating a binary compliance crisis for a Chinese state-linked entity without any diplomatic off-ramp: unlike the Rusal 2018 episode, there is no Deripaska-style ownership transfer available because MOFCOM's blocking order explicitly prohibits compliance.

Counter-view: The Shanghai Institute of International Studies argues that Chinese banks will route Hengli's dollar settlement through non-US correspondent networks in Hong Kong and Macau, citing the 2015 BNP Paribas post-settlement period as a precedent where dollar clearing migrated rather than ceased; Beijing's calculation is that OFAC enforcement capacity against Chinese entities inside China remains effectively zero without extradition.

Key tension: Whether OFAC's secondary-sanctions mechanism can actually reach Chinese onshore clearing banks, or whether its jurisdictional reach stops at the US-dollar correspondent layer that Chinese banks are already actively re-routing around.

First Reported In

Update #104 · Three days to Hengli

Manifold Times· 21 May 2026

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Causes and effects

Caused by

MOFCOM No. 21 mirrors OFAC's blind spots

MOFCOM Announcement No. 21 blocking order created the legal collision the GL V expiry now resolves into a per-transaction enforcement moment

Occurred 2 May 2026

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This Event

Three days to the Hengli cliff

Sunday 24 May is the first hard-dated OFAC-MOFCOM enforcement collision of the Iran war, the only Iran-relevant US instrument running on a written clock.

Led to

Hengli moves Singapore arm before GL V cliff

OFAC General Licence V expiry on 24 May (ID:3493) created the deadline that drove Hengli to restructure the Singapore arm's ownership before Sunday midnight.

Occurred 21 May 2026

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Sanctions licence dies in OFAC silence

GL V expired (ID:3493 records the expiry); the new beat is OFAC's silence on the Dalian Changxing 50%-ownership question at expiry.

Occurred 24 May 2026

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OFAC silent as sanctions licence lapses

The secondary-sanctions exposure Chinese banks face (ID:3493) is the risk context that makes Monday's OFAC silence consequential for dollar-clearing decisions.

Occurred 25 May 2026

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China halts big-four loans to refiners

OFAC's GL V expiry and secondary-sanctions exposure for Chinese banks (ID:3493) is the context that makes the NFRA lending halt a parallel Chinese regulatory response.

Occurred 25 May 2026

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Different Perspectives

The United Kingdom

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Brussels

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Hungary's Tisza government

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Washington

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Moscow

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Ukraine's government and its street protesters

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