Indo-Pacific — 2026-05-10

China Orders Firms to Defy US Sanctions on Iranian Oil Trade, Escalating Legal Clash

China's Ministry of Commerce on Saturday ordered all domestic companies not to comply with US sanctions on five Chinese oil refiners, including Hengli Petrochemical (Dalian) Refinery, which the US State Department sanctioned for involvement in Iranian oil trade. Beijing invoked its 2021 Blocking Statute, described by the South China Morning Post as its first such deployment, banning recognition, enforcement, or compliance with the US measures on Chinese territory. Fortune reported that Beijing had previously allowed major firms to quietly comply with US sanctions to preserve access to the US financial system. Chinese lenders working with the five firms are seeking guidance from the banking regulator, Fortune reported, and a Treasury Department grace period from OFAC gives them additional time before they must act.

Analysis
Beijing's Blocking Statute invocation, corroborated by Fortune and the South China Morning Post despite single-source classification, creates irreconcilable legal obligations for Chinese banks serving the five sanctioned refiners, with OFAC's grace period marking the deadline before the conflict becomes operationally unavoidable. The departure from quiet compliance is deliberate: Beijing calculated the cost of tolerance now exceeds the cost of confrontation. US secondary sanctions on at least one named Chinese entity are likely within the next 90 days, State having already demonstrated willingness to target a prominent modern refiner in Hengli, a qualitative escalation beyond prior practice. The statute may instead function as domestic legal cover for continued quiet workarounds, though the banking sector's scramble for regulatory guidance suggests real operational weight.

1 sources

China orders firms to defy US sanctions on Iranian oil trade - Cipher Brief