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The Lead China has ordered its citizens and companies not to comply with United States sanctions against five Chinese refineries accused of handling Iranian oil, deploying a law intended to counteract 'extra-territorial' punitive measures for the first time. Understanding China's Anti-Sanctions Order China's Ministry of Commerce issued the 'prohibition order' after the US Department of the Treasury last month announced sanctions targeting one of China's biggest independently run 'teapot' refineries. The ministry stipulated that the US sanctions on Hengli Petrochemical (Dalian) refinery and four other refineries 'shall not be recognised, enforced or complied with'. The sanctions were deemed to 'improperly' restrict normal trade and business activities in violation of international law. The Data Analysis China is Iran's largest trade partner and by far the biggest buyer of Iranian oil. Chinese buyers received more than 80 percent of Iran's oil shipments in 2025, according to market intelligence firm Kpler. The US Treasury Department imposed the latest sanctions after accusing Hengli of generating hundreds of millions of dollars in revenue for Iran's military via crude oil purchases. The Impact Analysis The move signals that Beijing is taking a more assertive approach to countering sanctions. Companies risk facing the wrath of Washington or Beijing, depending on which measures they comply with. This potentially puts them in a difficult position, with firms likely to approach the competing pressures based on their respective levels of exposure to the US and Chinese markets. The Prediction China's anti-sanctions law could be seen as a model for other countries seeking to counter US pressure. However, it remains to be seen whether other countries will follow China's lead. The law's most significant long-term effect could be to inspire other powers such as Russia and the European Union to adopt similar measures.

US Treasury Targets Hengli Petrochemical’s Dalian FacilityThe U.S. Treasury Department announced sanctions on Hengli Petrochemical (Dalian) Refinery, China’s second‑largest independent “teapot” refinery, accusing it of purchasing hundreds of millions of dollars worth of Iranian crude. The action comes ahead of potential diplomatic talks aimed at ending the U.S.–Israel conflict with Iran.Sanctions Scope and Financial FiguresTargeted entity: Hengli Petrochemical (Dalian) RefineryAlleged purchases: hundreds of millions of dollars in Iranian oilAdditional measures: sanctions on ~40 shipping firms and vessels linked to Iran’s “shadow fleet”The Treasury highlighted that these transactions generate significant revenue for the Iranian military, intensifying the geopolitical stakes.Implications for China’s Independent ‘Teapot’ RefineriesChina’s “teapot” refineries—small, privately owned plants mainly in Shandong—have become crucial conduits for discounted Iranian and Russian oil, allowing state‑owned giants to stay insulated from politically risky trades. The new sanctions threaten:Revenue streams for the refineriesSupply chains that rely on covert financing and vessel networksChina’s broader strategy of diversifying oil imports, which currently sees >50% of its oil from the Middle East and >80% of Iran’s shipped oil purchased by Chinese firms (Kpler data).U.S. Treasury Secretary Scott Bessent warned that any person or vessel facilitating these flows “risks exposure to U.S. sanctions.”Broader Market Impact and Geopolitical TensionThe sanctions add another layer of pressure on an oil market already strained by the U.S.–Israel war on Iran and a U.S. naval blockade of Iranian ports (in place since April 13). Analysts at Bruegel note that teapot refineries face “high replacement prices” as global tensions drive up costs, potentially reducing China’s ability to stockpile cheap oil.Looking Ahead: Future of Sino‑Iran Oil TradeWith the U.S. signaling continued targeting of “the network of vessels, intermediaries, and buyers” that move Iranian oil, Chinese independent refiners may need to:Seek alternative feedstocks to mitigate sanction riskIncrease compliance and transparency in trade financingPotentially align more closely with state‑owned enterprises to shield operationsShould diplomatic efforts succeed, the intensity of sanctions could ease, but the precedent set by this action suggests a prolonged period of heightened scrutiny for China’s “teapot” sector.