US Sanctions Chinese Refinery and 40 Shippers Over Iranian Oil/ Newslooks/ WASHINGTON/ J. Mansour/ Morning Edition/ The Trump administration imposed new sanctions on a major China-based oil refinery and about 40 shipping companies tied to transporting Iranian crude oil. The move targets one of Iran’s biggest revenue sources and expands U.S. pressure through both financial sanctions and the ongoing Strait of Hormuz blockade. Officials say the sanctions are part of a broader strategy to force Iran into concessions during ongoing nuclear and regional security negotiations.
Iran Oil Sanctions Quick Looks
- U.S. sanctioned a major refinery in Dalian, China
- About 40 shipping companies and tankers were also targeted
- Hengli Petrochemical is accused of processing Iranian crude since 2023
- Treasury says the refinery generated major revenue for Iran’s military
- Sanctions cut companies off from the U.S. financial system
- China remains the biggest buyer of Iranian oil
- Trump’s administration continues expanding its Strait of Hormuz blockade
Deep Look
Trump Administration Expands Iran Oil Crackdown
WASHINGTON — President Donald Trump’s administration on Friday imposed sweeping new sanctions on a major China-based oil refinery and roughly 40 shipping companies and tankers accused of helping transport Iranian crude oil.
The move represents one of the strongest economic actions yet in the White House campaign to cut off Iran’s most important source of revenue — its oil exports.
The sanctions were first reported by The Associated Press and are part of Trump’s broader strategy of combining military pressure, financial restrictions, and diplomacy to force Tehran into a larger agreement over its nuclear program and regional conflicts.
At the same time, the U.S. has maintained a physical naval blockade in the Strait of Hormuz, one of the world’s most important oil shipping routes.
Together, the sanctions and blockade are designed to squeeze Iran’s economy from both directions.
Chinese Refinery Hengli Petrochemical Targeted
Included in Friday’s sanctions is a major facility operated by Hengli Petrochemical in the port city of Dalian, China.
The refinery can process roughly 400,000 barrels of crude oil per day, making it one of the largest independent refineries in China.
According to the U.S. Treasury Department, Hengli has been receiving Iranian crude shipments since 2023.
Officials say those purchases have generated hundreds of millions of dollars in revenue for Iran’s military.
Treasury argues that money has helped fund Tehran’s broader military operations and support for regional proxy groups.
The advocacy group United Against Nuclear Iran previously identified Hengli as one of dozens of Chinese buyers of Iranian crude.
That made the refinery a major target as Washington expanded secondary sanctions.
What Secondary Sanctions Mean
The sanctions do more than simply restrict direct U.S. trade.
They effectively cut the targeted companies off from the American financial system and punish any businesses or financial institutions that continue working with them.
That makes secondary sanctions especially powerful.
Even foreign companies with no direct U.S. operations often comply because they rely on dollar-based transactions, global banking access, or trade tied to U.S. markets.
The White House says this pressure is intended to force international buyers to stop purchasing Iranian oil altogether.
Treasury Secretary Scott Bessent made that position clear.
“We will continue to constrict the network of vessels, intermediaries and buyers Iran relies on to move its oil to global markets,” Bessent said.
China Remains Iran’s Largest Oil Buyer
China is by far the largest customer for Iranian crude.
Before the U.S.-Israeli war with Iran intensified, China was importing an estimated 80% to 90% of Iran’s exported oil.
Much of that oil reaches China through what officials call a “shadow fleet” — older vessels operating with hidden ownership, altered tracking systems, and cargo paperwork designed to disguise the oil’s true origin.
Often, Iranian crude arrives labeled as oil from countries such as Malaysia.
Smaller independent refineries in China, often called “teapot refineries,” are frequent buyers of these shipments.
Washington believes shutting down these trade routes is essential to weakening Iran’s financial position.
Strait of Hormuz Blockade Adds More Pressure
These sanctions come while the U.S. naval blockade of the Strait of Hormuz continues to disrupt global shipping.
The waterway connects the Persian Gulf to global markets and handles roughly one-fifth of the world’s traded oil.
Defense Secretary Pete Hegseth said Friday that the blockade has now gone “global,” with U.S. forces seizing additional Iranian-linked ships outside the Gulf region.
The Pentagon says 34 Iranian ships have now been prevented from leaving the Strait.
That military pressure has sharply reduced Iran’s export capacity and raised fears of production shutdowns inside the country.
Treasury Secretary Bessent warned earlier Friday that Iran may soon have to start shutting oil wells because exports have effectively stopped.
Earlier Warnings Sent to Global Banks
Treasury has been preparing for this step for weeks.
Earlier this month, Bessent’s department sent formal warning letters to financial institutions in China, Hong Kong, the United Arab Emirates, and Oman.
The letters threatened secondary sanctions against banks and businesses accused of helping move Iranian money or process Iranian oil transactions.
Officials accused those countries of allowing illicit Iranian financial activity to pass through their banking systems.
During a White House briefing on April 15, Bessent warned countries directly.
“If you are buying Iranian oil, that if Iranian money is sitting in your banks, we are now willing to apply secondary sanctions, which is a very stern measure,” he said.
Friday’s sanctions show that warning is now being enforced.
Oil Markets Already Under Pressure
The sanctions arrive during one of the most unstable periods for global energy markets in years.
Conflict around the Persian Gulf and shipping disruptions through Hormuz have pushed oil and natural gas prices sharply higher.
That has raised fuel prices for consumers and increased inflation pressure worldwide.
To help stabilize markets, Treasury previously issued temporary sanctions waivers for Russian oil and a one-time waiver for Iranian oil already at sea.
But Bessent confirmed Friday that no new Iranian oil waivers will be granted and Russian oil relief is also expected to end.
That signals the administration is prioritizing pressure on Tehran even if energy markets remain volatile.
China Pushes Back on US Sanctions
China has repeatedly criticized U.S. sanctions on its companies.
After Washington earlier sanctioned another Chinese refinery accused of buying Iranian oil, Chinese embassy spokesperson Liu Pengyu said the measures harmed global trade rules.
He said the use of sanctions “undermines international trade order and rules, disrupts normal economic and trade exchanges, and infringes upon the legitimate rights and interests of Chinese companies and individuals.”
Despite public objections, many major Chinese companies and banks still comply with U.S. sanctions because of their exposure to the American financial system.
That gives Washington significant leverage even without direct cooperation from Beijing.
Sanctions Ahead of Trump-Xi Meeting
The timing is also notable because Trump and Chinese President Xi Jinping are expected to meet in China within weeks.
The sanctions could become a major issue during those discussions.
They add new economic tension at a time when both countries are already balancing trade disputes, military concerns, and broader geopolitical competition.
For Trump, however, the priority remains Iran.
The administration believes cutting off oil revenue is the fastest way to force Tehran toward deeper concessions.
With diplomacy continuing and pressure increasing, the White House is making clear that economic relief will not come first.
Sanctions, not concessions, remain the current strategy.
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