China rejects US sanctions on oil buys

Oil sanctions are supposed to isolate Iran. Instead, this round has opened a direct fight with China. On May 2, Beijing’s Commerce Ministry issued an injunction blocking U.S. sanctions on five Chinese refineries accused of buying Iranian oil, including Hengli Petrochemical’s Dalian refinery. That matters because China is still the main destination for Iran’s seaborne crude, so if Beijing refuses to cooperate, Washington’s pressure campaign gets much harder to enforce. (wkzo.com) ### What did China actually do? Beijing did more than complain. It used a formal blocking measure. The ministry said the U.S. sanctions violate international law and that the sanctions on the five Chinese companies cannot be recognized, implemented, or complied with inside China. In plain English, China is telling domestic firms and institutions not to honor the U.S. penalties. (wkzo.com) ### Which companies are in the middle? The headline name is Hengli Petrochemical, a huge independent refiner in Dalian that the U.S. sanctioned on April 24. The other four are Chinese “teapot” refiners hit earlier — Hebei Xinhai Chemical Group, Shandong Shouguang Luqing Petrochemical, Shandong Shengxing Chemical, and Shandong(wkzo.com)ter of the country’s refining capacity. (home.treasury.gov) ### Why is the U.S. targeting teapots? Because that is where a lot of Iranian oil ends up. Treasury warned on April 28 that China buys about 90% of Iran’s oil exports, with teapot refineries taking the majority of those barrels. The U.S. case is that this trade funds Tehran’s military, weapons programs, and regional operations, so Washington is trying to squeeze not just ships and traders but also the buyers and banks behind them. (home.treasury.gov) ### What did Washington do this week? It escalated again. On May 1, the State Department sanctioned Qingdao Haiye Oil Terminal, a China-based terminal operator it says imported tens of millions of barrels of Iranian crude in 2025. State also said this was the 12th round of sanctions targeting Iranian oil sales since National Security Presidential Memorandum 2 w(home.treasury.gov)ling campaign. (state.gov) ### Why doesn’t this just shut the trade down? Because the trade is built to survive pressure. Treasury and State describe a network of ship-to-ship transfers, front companies, dark-fleet tankers, falsified paperwork, and terminals willing to handle cargo after origin gets obscured. A sa(state.gov)omewhere else. (state.gov) ### So who has the stronger hand? The U.S. still has the scarier financial weapon. Secondary sanctions can hit banks, shipping services, and anyone touching dollar finance. Treasury has already warned financial institutions that support these refiners could face penalties, and officials (state.gov) have limited direct exposure to the U.S. system. (home.treasury.gov) ### What changes now? The fight stops being just Washington versus Iran and becomes Washington versus the Chinese infrastructure moving Iranian oil. That raises the odds of broader financial pressure on Chinese intermediaries, not just more blacklists for tankers and small refiners. It also means every future sanctions step now carries more diplomatic risk with Beijing. (state.gov) ### Bottom line? China just told the U.S. that its Iran oil sanctions do not get automatic obedience inside China. That does not make the U.S. penalties vanish. But it does make enforcement messier, more political, and much more likely to spill into the wider U.S.-China relationship. (wkzo.com)